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Sodium Carboxymethyl Starch (CMS-Na) is a modified starch ether derived from natural starch, appearing as a white, odorless powder soluble in cold water.
In food, it serves as a thickener, stabilizer, emulsifier, suspending agent, and anti-staling agent, widely used in ice cream, yogurt, beverages, bread, noodles, and processed meats.
Key selling points:
Natural origin from corn/potato starch — clean-label friendly
Cost-effective — cheaper raw materials than CMC, faster dissolution, greater swelling capacity
Superior mouthfeel — smoother texture without gummy aftertaste
High ion tolerance — outperforms CMC in dairy/mineral-rich systems
Zero calories — physiologically inert, ideal for health foods
Multi-functional — one ingredient replaces several additives
Eco-friendly — fully biodegradable
It is the leading natural alternative to CMC, offering broader functionality, better sensory qualities, and lower cost across diverse food applications.
Specifications of Sodium carboxyl methylstarch CAS 9063-38-1 COA:
Items | Specifications | Results |
Appearance | This product should be white or white powder, odorless and wet. This product is dispersed into a viscous colloidal solution in water and insoluble in ethanol or ether. | Conform |
Identification | Legal identification should meet the standards | Conform |
PH | 5.5~7.5 | 6.1 |
Sodium chloride | ≤7.0% | 4.1% |
Sodium glycollate | ≤2.0% | Conform |
Loss on drying | ≤10.0% | 5.1% |
Iron | ≤0.002% | Conform |
Heavy metals | ≤20ppm | Conform |
Na Assay | Dry product washed with 80% ethanol:2.8~4.2% | 3.0% |
Microbial limits | Standard | Result |
Aerobic bacteria | ≤103 cfu/g | 10 cfu/g |
Mold and yeast | ≤102 cfu/g | 20 cfu/g |
Salmonella | May not be detected | Not detected |
E. Coli | May not be detected | Not detected |
Conclusion | The product conforms to the above specifications. | |
Product Name:Sodium carboxyl methylstarch
CAS:9063-38-1
MF:C2H4O3·xNa·x
Melting point :618-597-7
form:powder
color:White
Uses:
Sodium Carboxymethyl Starch (CMS-Na) is an anionic starch ether — a chemically modified (carboxymethylated) derivative of natural starch. It is produced by reacting starch (typically from corn, potato, or wheat) with sodium hydroxide and chloroacetic acid under alkaline conditions, introducing carboxymethyl groups (–CH₂COONa) onto the starch backbone.
| Property | Detail |
|---|---|
| CAS Number | 9063-38-1 |
| Molecular Formula | [C₁₀H₁₉O₈Na]ₙ |
| Appearance | White to pale yellow, odorless, tasteless powder |
| Solubility | Readily soluble in cold water (at DS > 0.2), forming a viscous colloidal solution |
| Insoluble in | Ethanol, ether, chloroform, and other organic solvents |
| Stability | Stable in alkaline/neutral conditions; viscosity drops in strong acid or prolonged heating above 80 °C |
| Safety | Non-toxic, physiologically inert, no caloric value; ADI not limited (GRAS status) |
Thickener — increases viscosity and delivers a smooth, rich mouthfeel in sauces, soups, and beverages.
Stabilizer — prevents phase separation (oil/water) and maintains uniform texture over shelf life.
Emulsifier — enhances compatibility between water and oil phases in dressings, dairy products, and frozen desserts.
Suspension agent — keeps solid particles (e.g., fruit pulp) evenly distributed in juices and drinks.
Water-retention / Anti-staling agent — locks in moisture and delays starch retrogradation in bread, cakes, and noodles, keeping them soft longer.
Film-forming agent — creates a protective coating on fried foods (e.g., instant noodles, french fries) to reduce oil absorption and retain moisture.
Anti-crystallization agent — inhibits ice crystal growth in ice cream and frozen foods, yielding a smoother texture.
Shelf-life extender — its freshness-preserving and anti-aging properties help prolong product quality.
Typical Food Applications & Dosage
| Food Category | Function | Typical Dosage |
|---|---|---|
| Ice cream / frozen desserts | Emulsion stabilizer, anti-crystallization | 0.06–0.5% |
| Yogurt / milk beverages | Thickener, prevent whey separation | 0.1–0.2% |
| Fruit juices / pulpy drinks | Suspension stabilizer | 0.05–0.3% |
| Bread / cakes | Anti-staling, texture improvement | 0.02–0.8% |
| Noodles / dumplings | Improve toughness, cooking resistance | 0.2–1.0% |
| Ham / processed meat | Water retention, reduce cooking loss | 0.5–0.8% |
| Jams / syrups | Thickening, anti-crystallization | 0.1% |
According to China's GB 2760 food additive standard, CMS-Na is classified as a thickener that can be used in appropriate amounts according to production needs in most food categories, with specific maximum limits for certain products (e.g., ice cream 0.06 g/kg, bread 0.02 g/kg, jam 0.1 g/kg).
Key Selling Points (vs. CMC and Other Thickeners)
CMS-Na is widely regarded as the best replacement for Carboxymethyl Cellulose (CMC), and here's why:
Natural starch origin — derived from corn, potato, or wheat starch, aligning with consumer demand for natural, clean-label ingredients.
Superior cost-effectiveness — raw material costs are lower than CMC; it dissolves faster, swells more (up to 200–300× its volume), and requires less energy to process.
Better sensory profile — its aqueous solution has a softer, smoother mouthfeel without the "gummy" aftertaste sometimes associated with CMC.
Higher tolerance to divalent metal ions (Ca²⁺, Mg²⁺) — outperforms CMC in dairy and mineral-rich systems, reducing the risk of precipitation.
Zero caloric value — physiologically inert and not metabolized, making it ideal for low-calorie, diet, and health-focused food products.
Multi-functionality — a single ingredient delivers thickening, stabilizing, emulsifying, suspending, film-forming, and anti-staling benefits, simplifying formulation.
Biodegradable & eco-friendly — fully biodegradable, supporting sustainability goals.
Regulatory compliance — approved as a food additive (GRAS), with no restricted ADI, and complies with national food safety standards (e.g., GB 1886.340-2021 in China).
Limitations to Be Aware Of
Not suitable for strongly acidic foods (pH < 3): viscosity drops significantly as free acid precipitates. For acidic products, it can be blended with xanthan gum or pectin to compensate.
Microbial sensitivity: aqueous solutions can be partially degraded by airborne bacteria (α-amylase), so prepared solutions should not be stored for extended periods.
Heat sensitivity: prolonged heating above 80 °C reduces viscosity.
In summary, Sodium Carboxymethyl Starch is a versatile, cost-effective, and naturally derived food-grade hydrocolloid that serves as a powerful multi-functional additive — particularly valued as a superior, more economical alternative to CMC across a broad range of food applications.






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A: For small QTY and low value product, we can provide sample for free exclude shipping cost. For high value sample, we will charge the basic sample cost, but we can refund all the cost if customers place order after sample test.
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A: For less than 100kg gross weight order will ship with courier like FedEx or UPS, we support customers to place courier orders remotely by their account, we will package the goods well and wait for pick up.For more than 100kg goods, we will transport by Air or Sea according to customers' requirement.
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A: We accept customer’s quality complaint in three month after customer received the goods. We provide tech.support for all-life if customer place order from our company.
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A: We support customer to provide our products to any rightful third party testing organization to test our products according to the COA specification, if the test result is confirm with COA, we will take all the loss for customers.



Name:Wuhan Fortuna Chemical Co.,Ltd
Category:Others
Trade Category: Trading Company
Employees: 11 - 50 People
Address: Room 2015, No.2 Building, Kaixin Mansion No.107
Company Information: Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical and Intermediates, Food and Feed additives, Fine chemicals,Biochemical and Reagent, which is the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients' requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward power, their satisfaction is our struggling goal.
Wuhan Fortuna Chemical Co.,Ltd is a professional manufacturer which provide Sodium carboxyl methylstarch with good quality and best price, welcome to contact us to get COA/TDS/MSDS of Sodium carboxyl methylstarch.
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