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Basic Information
Product Name Coated Vitamin C / Coated Ascorbic Acid
Active Ingredient L-Ascorbic Acid
CAS No. 50-81-7
Available Specification 90%, 97%
Product Grade Food Grade, Feed Grade
Physical Property Free-flowing coated granular powder
Core Feature Anti-moisture, anti-oxidation, heat-stable, slow-release, effectively avoid nutrient loss
Main Application Fortified food, dietary supplements, animal feed premixes

 

Active Ingredients & Standard Specifications

Test Item Specification Application Notes
L-Ascorbic Acid (coated) ≥97% Stabilized grade for direct compression and high-humidity production environments

 

Product Overview

Coated Ascorbic Acid, also known as Coated Vitamin C, Cas No.:CAS 50-81-7,  is a stabilized form of L-ascorbic acid produced by applying a food-grade coating layer onto pure ascorbic acid particles. This coating technology significantly improves stability against moisture, oxygen and heat, prevents browning and oxidation during processing and storage, and reduces gastric irritation compared to uncoated vitamin C. It is supplied as free-flowing white to slightly yellowish granules, widely used in tablets, capsules, effervescent formulations and antioxidant cosmetic products.

Character

Coated Ascorbic Acid is a stabilized vitamin C ingredient produced by coating pure L-ascorbic acid particles with a food-grade protective layer. It features high oxidation resistance, low hygroscopicity, good flowability and compressibility, making it ideal for direct compression tablet production. The coating protects vitamin C from moisture, heat and oxygen during processing and long-term storage, reduces gastric irritation, and can be used alone or compounded with other vitamins, minerals and botanical extracts in multi-nutrient formulations. It should be stored in sealed containers in cool, dry conditions away from moisture, high temperature and strong light.

 Main Functions

1.Enhanced Stability & Oxidation Resistance Food-grade coating protects ascorbic acid from moisture, oxygen and heat, preventing browning and degradation during processing and storage.

2.Immune Support Supports normal immune system function and body defense response.

3.Antioxidant Protection Neutralizes free radicals and reduces oxidative stress, supporting cellular health.

4.Reduced Gastric Irritation The coating layer slows down dissolution, reducing gastric irritation compared to uncoated ascorbic acid.

 

Applications

 

Dietary Supplements: Used in tablets, capsules and powder blends for immune support, antioxidant and multi-vitamin mineral formulations; especially suitable for direct compression tablet production.

 

Packaging & Storage

Packaging: 25kg fiber drum with inner food-grade polyethylene bag

Storage: Store in cool, dry, dark and ventilated warehouse, keep tightly sealed

Avoid direct sunlight, high temperature and humid environment

Shelf Life: 24 months under standard sealed storage conditions

Product Name: L-Ascorbic acid Other Name: L-Ascorbic acid;Allercorb;Antiscorbic vitamin;Antiscorbutic vitamin;Ascorbajen;Ascorin;Ascorteal;Ascorvit;Cantan;Cantaxin;Catavin C;Cebicure;Cebione;Cecon;Cegiolan;Ceglion;Celin;Ce-Mi-Lin;Cenetone;Cereon;Cergona;Cescorbat;Cetemican;Cevalin;Cevatine;Cevex;Cevimin;Ce-Vi-Sol;Cevitamic acid;Cevitamin;Cevitan;Cevitex;Ciamin;Cipca;Concemin;Davitamon C;3-keto-L-Gulofuranolactone;L-3-Keto-threo-hexuronic acid lactone;Laroscorbine;Lemascorb;Liqui-Cee;3-Oxo-L-gulofuranolactone;Planavit C;Proscorbin;C-Quin;Ribena;Secorbate;Vicelat;Vicin;Vitacimin;Vitacin;Vitamin C;Vitamisin;Vitascorbol;Redoxon;Vitacee;L-threo-Hex-2-enonic acid,γ-lactone;Ascorbic acid;L-Lyxoascorbic acid;Xyloascorbic acid,L-;Cevital;L-Xyloascorbic acid;C-Vimin;Testascorbic;Adenex;Hybrin;Cetamid;Colascor;Scorbu C;Xitix;Celaskon;Cebion;Cemagyl;Ascorbutina;Viforcit;Vitace;IDO-C;Viscorin;Ascoltin;Hicee;Neo-Valdrin;(+)-Ascorbic acid;Citrovit;Chewcee;L-threo-Ascorbic acid;Ronotec 100;L-(+)-Ascorbic acid;Rontex 100;Juvamine;Rovimix C;Vasc;P 1110;VC 97;Kangbingfeng;Suncoat VC 40;Viscorin 100M;Cewin;Ceklin;Ascorbicap;Cetane;Cetane-Caps TC;Cetebe;E 300;NSC 218455;NSC 33832;Cell C;Ascorell;C-L 6/PW;VC 40;100M;Cinal;Rovimix C-EC;Vitashure 160;Cevarol;Tanvimil C;Vaginorm-C;Monovitan C;Pascorbin;Ascorbalox;Energil C;Bovi-C;Emvit-C;Novasol Cof;5-(1,2-Dihydroxyethyl)-3,4-dihydroxy-5H-furan-2-one;14536-17-5;30208-61-8;50976-75-5;56172-55-5;56533-05-2;57304-74-2;57606-40-3;88845-26-5;89924-69-6;129940-97-2;154170-90-8;259133-78-3;623158-95-2;882690-91-7;884381-69-5;885512-24-3;896436-13-8;1018124-03-2;1129294-89-8;1428525-25-0;1703051-92-6
CAS No.: 50-81-7 Molecular Formula: C6H8O6
InChIKeys: InChIKey=CIWBSHSKHKDKBQ-JLAZNSOCSA-N Molecular Weight: 176.124
Exact Mass: 176.12 EC Number: 200-066-2
HScode: 29362700 Categories: Food Antioxidants

PSA: 107.22 XLogP3: -1.4074
Appearance: White to very light yellow crystalline powder Density: 3″>1.65 g/cm3
Melting Point: 190-192 °C (decomp) Boiling Point: 415.8ºC at 760 mmHg
Flash Point: 180.4ºC Refractive Index: 21 ° (C=10, H2O)
Water Solubility: H2O: 333 g/L (20 ºC) Storage Conditions: Ventilation low temperature drying
Vapor Pressure: 9.28X10-11 mm Hg at 25 deg C (est) Toxicity: LD50 oral in rat: 11900mg/kg
Specific rotation: [α]D/20 between + 20,5° and + 21,5° (10 % w/v aqueous solution) Explosive limit: Dust forms explosible mixtures in air with moderate explosion severity.
Odor: Odorless Taste: Pleasant, sharp, acidic taste
PH: Between 2,4 and 2,8 (2 % aqueous solution) PKA: 4.7(at 10 °C)

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Pictogram(s) No symbol.
Signal word

No signal word

Hazard statement(s)

none

Precautionary statement(s)
Prevention

none

Response

none

Storage

none

Disposal

none

Other hazards which do not result in classification

no data available

Precautions for safe handling

NO open flames. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Separated from strong oxidants and strong bases.Solutions of ascorbic acid are rapidly oxidized in air and in alkaline media; the drug should be protected from air and light.