Sorbitol Solution 70% (High-Purity Non-Crystallizing Grade 370A)

Description

Sorbitol Solution 70% Grade 370A is Huanfa Biotechnology's premium high-purity non-crystallizing D-sorbitol liquid. Manufactured through the catalytic hydrogenation of in-house produced glucose syrup followed by advanced multi-stage ion-exchange purification, Grade 370A achieves a D-sorbitol content of ≥92% on a dry basis — the highest purity tier in Huanfa's sorbitol solution portfolio — while passing an independently verified non-crystallization test at -18°C for 48 hours.

This combination of high purity and proven non-crystallizing performance positions 370A as the grade of choice for applications where maximum D-sorbitol content is non-negotiable: pharmaceutical syrups and capsule formulations requiring USP/NF or BP compliance, premium toothpaste where sorbitol purity directly impacts product stability and consumer experience, and industrial vitamin C fermentation where feedstock purity drives yield and process efficiency.

Unlike lower-purity non-crystallizing grades that achieve their liquid stability through a broader polyol distribution (incorporating more mannitol and higher polyhydric alcohols), Grade 370A maintains its non-crystallizing behavior while keeping D-sorbitol content at the top of the specification range — meaning more of what you want (functional D-sorbitol) and less of what you do not need (non-functional co-polyols).

Every batch of Huanfa 370A is tested against a 22-parameter specification — including crystallization tendency at -18°C, diethylene glycol and ethylene glycol limits, conductivity, chloride, and sulfate — and ships with a detailed Certificate of Analysis. The result is a sorbitol solution that formulators in the most demanding industries trust for consistent performance, batch after batch.


Why Source Sorbitol Solution 70% Grade 370A from Huanfa Biotechnology?

1. 0% US Import Tariff — A Structural Cost Advantage
Under HTS 2905.44.0000, sorbitol carries a 0% MFN rate of duty. At a time when competing polyols and sweeteners from China face combined Section 301 (25%) and IEEPA (20%) tariffs — totaling 45% — sorbitol's duty-free status gives US-based formulators a permanent cost advantage that no negotiation or exemption can replicate.

2. 22-Parameter Batch Testing with Full COA Transparency
Every production batch of Grade 370A is tested against all 22 parameters — not a subset, not a composite, not a "typical value." The actual Certificate of Analysis for Lot A1726114A (June 2026) demonstrates transparency that most suppliers do not offer: D-sorbitol 94.80% (well above the 92% minimum), conductivity 0.458 μS/cm (barely above deionized water), reducing sugar 0.09% (less than half the specification limit). This level of data transparency means your quality team can qualify 370A with confidence — not on trust.

3. Full Vertical Integration — From Corn to Sorbitol
Huanfa does not purchase glucose syrup from external suppliers. Our in-house starch hydrolysis and glucose refining feeds directly into our catalytic hydrogenation reactors, eliminating the raw material variability, transport degradation, and contamination risks inherent in a multi-vendor supply chain. Every drop of 370A sorbitol can be traced to the corn starch lot from which it was made.

4. Independently Verified Non-Crystallizing Performance
The -18°C / 48-hour crystallization test is not a marketing claim — it is a tested and reported specification on every COA. In an industry where "non-crystallizing" is often stated but rarely verified, this data point gives your production and quality teams the assurance that 370A will flow when it arrives, not after a tank-warming procedure.

5. Internationally Recognized Certifications
FSSC 22000: GFSI-benchmarked food safety system
ISO 9001:2015: Quality management system
ISO 14001:2015: Environmental management system
Kosher Certification: Year-round and Passover
Halal Certification: Global Halal market access
Non-GMO: Verified non-GMO corn-derived glucose feedstock
GB 1886.187: Chinese national food safety standard for sorbitol solution

6. Global Brand Track Record
Huanfa sorbitol is trusted by Colgate-Palmolive, Mars Wrigley, Nestlé, Heinz, Perfetti Van Melle, Unilever, and Procter & Gamble — brands whose supplier qualification programs are among the most demanding in the food, pharmaceutical, and consumer goods industries.

7. Strategic Location & Logistics
Located within three hours of Guangzhou, Shenzhen, and Hong Kong ports, Huanfa offers competitive ocean freight with weekly sailings to all major global markets. Our logistics team has extensive experience with ISO tank and flexitank shipments of sorbitol solution, including heated-tank options for cold-climate destinations.

8. R&D-Driven Technical Support
Our 60-member R&D team can develop customized 370A specifications — adjusted solids concentration, modified reducing-sugar limits, tailored conductivity targets — and provide full analytical support for your supplier qualification and regulatory filing requirements.

Advantages   

Industry-leading D-sorbitol purity (≥92%): Grade 370A's high D-sorbitol content maximizes the functional polyol concentration in your formulation — more humectancy per kilogram, more sweetness per dose, more bulking per unit volume. For pharmaceutical and premium oral care applications where sorbitol is both a functional ingredient and an assayed active, this purity level directly supports label-claim compliance and regulatory filings.

Verified non-crystallizing — tested every batch: Unlike claims made on formulation alone, Grade 370A's non-crystallizing performance is independently verified at -18°C for 48 hours on every production batch. This is not a theoretical property — it is a tested and documented specification, giving formulators and quality assurance teams the data they need for supplier qualification.

Ultra-low conductivity (< 1 μS/cm typical): The exceptionally low ionic content of 370A — achieved through advanced ion-exchange purification — minimizes the risk of electrolyte interactions in pharmaceutical and oral care formulations. In toothpaste, low conductivity translates to reduced corrosion potential on aluminum laminate tubes and improved compatibility with ionic actives (fluoride salts, potassium nitrate).

Superior humectancy: Binding water tenaciously through multiple hydroxyl groups, 370A sorbitol prevents product drying in toothpaste tubes, maintains crumb softness in baked goods, preserves the pliable texture of soft gelatin capsules, and retains moisture in cosmetic creams and lotions — all functions that scale directly with D-sorbitol content.

Non-cariogenic sweetness: Sorbitol is not fermented by oral bacteria into enamel-demineralizing acids. Combined with its 0.6–0.7× sucrose sweetness and negative heat of solution (cooling mouthfeel), this makes 370A the structural and sensory backbone of modern toothpaste — the ingredient that makes oral care products both effective and pleasant to use.

Maillard-inert: Sorbitol does not react with amino acids or proteins in browning reactions, ensuring color stability in heat-processed products — from clear hard candies to the bright white stripes in multi-phase toothpaste.

Low glycemic response: Absorbed slowly and incompletely in the small intestine, sorbitol produces a significantly attenuated blood glucose and insulin response — supporting diabetic-friendly and low-glycemic product formulations.

Chemical inertness: Sorbitol is compatible with a broad range of active pharmaceutical ingredients, fluoride salts, silica abrasives, surfactants, flavors, and preservatives — it does not react with, degrade, or inactivate common formulation components.

Specifications

Huanfa Sorbitol Solution 70% — Grade 370A
Specifications below are verified per the actual Certificate of Analysis for Lot A1726114A, manufactured June 2026.

This 22-parameter COA is representative of Huanfa Grade 370A production. Minor batch-to-batch variation is normal within the stated specification ranges. Full lot-specific COA is provided with every shipment.

Why Grade 370A? — Purity Without Crystallization
Huanfa offers two non-crystallizing sorbitol solution grades. Choosing between them depends on your purity requirements:

Rule of thumb: If your application demands the highest possible D-sorbitol content with independently verified non-crystallizing performance — choose 370A. If you need a reliable workhorse for general food and industrial applications where maximum purity is not the priority — 870B is the cost-effective choice.

Shelf Life & Storage

Note on shelf life duration: While sorbitol solution is chemically stable for extended periods, Huanfa assigns a conservative 12-month shelf life to Grade 370A — shorter than the 24 months for Grade 870B — reflecting the higher purity and tighter specification range of this grade. The 12-month dating ensures that customers receive product well within its optimal pH, viscosity, and purity window. Pharmaceutical customers with extended-dating requirements should consult our technical team.

Packaging Options

All palletized packaging uses fumigated, ISPM-15 compliant wooden pallets with stretch wrap. For cold-climate destinations, heated/insulated ISO tanks are available to maintain product temperature within specification throughout transit.

Application

1. Pharmaceutical Excipients — The Defining Grade 370A Application

Grade 370A's high D-sorbitol purity (≥92%), ultra-low conductivity, and batch-verified non-crystallizing performance make it the sorbitol of choice for pharmaceutical applications where excipient quality directly impacts drug product safety, stability, and regulatory compliance.

Liquid oral dosage forms (syrups, elixirs, solutions): Sorbitol 370A serves as a non-cariogenic sweetening vehicle, viscosity builder, and humectant in cough syrups, antihistamine solutions, pediatric antibiotics, and vitamin formulations. Its high purity ensures that the excipient does not introduce reducing sugar reactions that could degrade active pharmaceutical ingredients (APIs) over shelf life.

Soft gelatin capsules: Functions as a plasticizer and humectant in the gelatin shell formulation, preventing capsule brittleness and cracking during storage while maintaining the shell's structural integrity. The low reducing-sugar content of 370A (< 0.21%) minimizes the risk of gelatin cross-linking — a known cause of delayed dissolution and bioavailability failure in softgel products.

Non-crystallizing sorbitol solution (USP/NF, BP, Ph. Eur. compliant): When manufactured to pharmacopoeia monographs, 370A meets the identity, purity, and impurity requirements of major international pharmacopoeias, supported by full regulatory documentation.

Effervescent tablets & granules: Provides bulk, mild sweetness, and rapid dissolution without interfering with the acid-carbonate reaction system or introducing hygroscopicity issues.

Oral care pharmaceutical products: Beyond cosmetic toothpaste, 370A is specified in therapeutic dentifrices (anti-caries, anti-gingivitis, desensitizing) and prescription fluoride gels where excipient purity is subject to drug-level quality oversight.

2. Premium Toothpaste & Oral Care

While all sorbitol solutions function as toothpaste humectants, high-purity 370A delivers measurable advantages in premium and therapeutic oral care products.

Humectant (20–40% of formulation): Prevents toothpaste from drying and hardening in the tube after opening — the single largest liquid ingredient by volume and the primary determinant of product consistency from first use to last.

Non-cariogenic bulk sweetener: Delivers the sweet taste consumers expect without feeding cariogenic oral bacteria — a functional necessity in any product positioned as promoting dental health.

Viscosity and body builder: The 70% solids concentration provides the thick paste rheology that allows toothpaste to sit on a brush, spread evenly across teeth, and resist dripping during use.

Low-conductivity advantage: 370A's ultra-low ionic content (< 1 μS/cm typical) reduces the electrochemical corrosion potential on aluminum laminate toothpaste tubes — a quality issue that can manifest as pinhole leaks and product discoloration over extended shelf storage.

Flavor and active compatibility: Chemically inert toward fluoride (sodium fluoride, sodium monofluorophosphate, stannous fluoride), silica abrasives, sodium lauryl sulfate, triclosan, potassium nitrate, and flavor oils — 370A does not react with or inactivate any standard toothpaste ingredient.

Mouthwash (alcohol-free): Provides body, mild sweetness, and humectancy without ethanol's burning sensation — suitable for children's, sensitive-teeth, and therapeutic mouthwash products.

Market validation: Colgate-Palmolive, one of the world's most rigorous oral care companies, is a long-standing Huanfa sorbitol customer — a de facto quality audit in itself.

3. Vitamin C (Ascorbic Acid) Production

Sorbitol is the foundational feedstock in industrial vitamin C manufacturing. The microbial conversion pathway — sorbitol → L-sorbose → 2-keto-L-gulonic acid → L-ascorbic acid — is the dominant global production route.

Fermentation substrate: Grade 370A's high D-sorbitol purity maximizes the fermentable substrate concentration, supporting higher yields in the initial Acetobacter-mediated oxidation of sorbitol to sorbose.

Low reducing sugar: The ≤ 0.21% reducing sugar specification minimizes the presence of glucose, which can support undesirable competing microbial metabolism during fermentation.

Consistent quality at scale: For vitamin C manufacturers consuming sorbitol by the ISO tank load, batch-to-batch purity consistency is as important as the absolute purity number. Huanfa's vertically integrated production — from corn starch to finished sorbitol — ensures that feedstock quality risk is eliminated.

4. Sugar-Free & Reduced-Sugar Confectionery

Sugar-free hard candies: 370A is cooked to high solids and molded into clear, glassy hard candies delivering sweetness and cooling mouthfeel without fermentable carbohydrates.

Chewing gum: Serves as the primary bulk sweetener in sugar-free gum; supports "tooth-friendly" labeling under FDA and EU health claim frameworks.

Gummies, jellies & marshmallows: Acts as a plasticizer maintaining soft, elastic chew texture over shelf life.

Compressed mints & lozenges: Functions as a binder and bulk sweetener with rapid dissolution and cooling mouthfeel.

5. Cosmetics & Personal Care

Creams, lotions & moisturizers: Humectant drawing atmospheric moisture to the skin surface.

Shampoo & body wash: Viscosity modifier and humectant in sulfate-free surfactant systems.

Transparent soap: Improves clarity and plasticity; contributes mild humectancy.

Shaving products: Foam stabilization, lubricity, post-shave skin feel.

6. Food Applications

Baked goods: Moisture retention, shelf-life extension, non-browning sweetness.

Frozen desserts: Freezing point depression, ice crystal suppression, scoopability.

Shredded coconut & dried fruit: Humectant treatment maintaining soft texture.

Surimi & processed seafood: Cryoprotectant preventing protein denaturation during frozen storage.

7. Industrial Chemical Intermediates

Sorbitan ester (Span) & polysorbate (Tween) synthesis: High-purity sorbitol is the preferred starting material for manufacturing these widely used non-ionic emulsifiers, where feedstock purity directly influences esterification efficiency and final product color.

Alkyd resin & polyurethane manufacture: Sorbitol serves as a polyol building block in coating and foam formulations.

Applications by Industry Sector — At a Glance

FAQ

Q: What is the minimum order quantity (MOQ) for Grade 370A?
A: Standard MOQ is one 270 kg HDPE drum for trial orders and one 20-foot container (flexitank or IBC totes, approximately 23–24 metric tons) for commercial supply. Smaller sample quantities (1–5 kg) are available for laboratory evaluation.

Q: Is Grade 370A truly non-crystallizing?
A: Yes — and it is tested, not assumed. Every production batch undergoes a controlled cold-storage test at -18°C for 48 hours. The COA reports the result directly: "No crystallizing." Lot A1726114A passed this test. This is independently verified performance, not a formulation claim.

Q: What is the shelf life?
A: 12 months from the date of manufacture. This conservative shelf life reflects the high-purity, tight-specification nature of Grade 370A. Chemically, the product is stable for longer periods under proper storage, but the 12-month dating ensures customers receive product within its optimal pH and purity window. For pharmaceutical applications requiring extended dating, please consult our technical team.

Q: How does 370A differ from 870B?
A: 370A has higher D-sorbitol purity (≥92% vs. 72–92%), tighter reducing-sugar limits (≤0.21% vs. ≤0.3%), batch-verified -18°C crystallization testing, and DEG/EG testing on every batch. It is specified for pharmaceutical, premium oral care, and vitamin C applications. 870B is a general-purpose non-crystallizing grade suitable for confectionery, food, cosmetics, and industrial applications. Choose 370A when purity matters; choose 870B when it does not.

Q: Is Grade 370A suitable for USP/NF, BP, or Ph. Eur. applications?
A: Yes. When manufactured to the relevant pharmacopoeia monograph, Grade 370A meets the identity, purity, and impurity limits of USP/NF, BP, and Ph. Eur. for non-crystallizing sorbitol solution. Pharmaceutical-grade documentation is available upon request.

Q: What is the lead time for a container order?
A: Standard lead time is 15–20 days from order confirmation to vessel departure. Pharmaceutical-grade orders may require additional quality release testing time.