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50-81-7 Suppliers

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Product FOB Price Min.Order Supply Ability Supplier
L(+)-Ascorbic acid/Antioxidant High quality Vitamin C 50-81-7
Cas No: 50-81-7
USD $ 18.0-20.0 / Kilogram 1 Kilogram 5 Metric Ton/Month Kono Chem Co.,Ltd Contact Supplier
High purity Ascorbic acid with high quality and best price cas:50-81-7
Cas No: 50-81-7
USD $ 10.0-17.0 / Kilogram 1 Kilogram 99999 Kilogram/Year Hangzhou Dingyan Chem Co., Ltd Contact Supplier
Ascorbic acid、vitamin c
Cas No: 50-81-7
No Data 3 Metric Ton 20 Metric Ton/Day QINGDAO TAOSIGN INTERNATIONAL TRADE CO.,LIMITED Contact Supplier
Vitamin C / Ascorbic Acid / Antioxidant Ascorbic Acid
Cas No: 50-81-7
No Data 1 Metric Ton 1 Metric Ton/Day Shaanxi WuZhiYuan Biological Technology Co.,Ltd Contact Supplier
Ascorbic Acid
Cas No: 50-81-7
No Data 1 Kilogram 100 Metric Ton/Day EAST CHEMSOURCES LIMITED Contact Supplier
High purity Ascorbic Acid Crystalline Powder
Cas No: 50-81-7
No Data 1 Kilogram 30000 Metric Ton/Year Shanghai Runkey Biotech Co., Ltd. Contact Supplier
Ascorbic Acid
Cas No: 50-81-7
USD $ 3.0-4.0 / Kilogram 500 Kilogram 50 Metric Ton/Month Henan Techway Chemical Co.,Ltd. Contact Supplier
Food additive Ascorbic acid powder
Cas No: 50-81-7
No Data 500 Kilogram Metric Ton/Day Yixing Jiangshan Bio-tech Co., Ltd. Contact Supplier
Coated Ascorbic Acid
Cas No: 50-81-7
No Data 1 Kilogram 1-5 Metric Ton/Month EnBridge PharmTech Co., Ltd. Contact Supplier
Factory supply directly Ascorbic acid of BP EP USP standard
Cas No: 50-81-7
USD $ 6.2-6.6 / Kilogram 1000 Kilogram 500 Metric Ton/Month HENAN JIXIANG CO.,LTD Contact Supplier

50-81-7 Usage

Reactivity Profile

L(+)-Ascorbic acid is a lactone. Reacts as a relatively strong reducing agent and decolorizes many dyes. Forms stable metal salts. Incompatible with oxidizers, dyes, alkalis, iron and copper. Also incompatible with ferric salts and salts of heavy metals, particularly copper, zinc and manganese .

Purification Methods

Crystallise it from MeOH/Et2O/pet ether [Herbert et al. J Chem Soc 1270 1933]. [Beilstein 18/5 V 26.]

Air & Water Reactions

May be sensitive to prolonged exposure to air and light. Sensitive to moisture. Soluble in water. Aqueous solutions are oxidized by air in a reaction that is accelerated by alkalis, iron and copper. The rate depends on the pH and on oxygen concentration. Also subject to degradation under anaerobic conditions.


antiscorbutic, antiviral


Physiological antioxidant. Coenzyme for a number of hydroxylation reactions; required for collagen synthesis. Widely distributed in plants and animals. Inadequate intake results in deficiency syndrome s such as scurvy. Used as antimicrobial and antioxidant in foodstuffs.


ChEBI: The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.


analgesic, antipyretic

General Description

White to very pale yellow crystalline powder with a pleasant sharp acidic taste. Almost odorless.

Chemical Properties

White crystals

Brand name

Ascorbin (Marion Merrell Dow).

Fire Hazard

Flash point data for L(+)-Ascorbic acid are not available; however, L(+)-Ascorbic acid is probably combustible.

50-81-7 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Sigma-Aldrich (A92902)  L-Ascorbicacid  99% 50-81-7 A92902-2KG 2,617.29CNY Detail
Sigma-Aldrich (A92902)  L-Ascorbicacid  99% 50-81-7 A92902-500G 861.12CNY Detail
Sigma-Aldrich (A92902)  L-Ascorbicacid  99% 50-81-7 A92902-100G 331.11CNY Detail
Sigma-Aldrich (A92902)  L-Ascorbicacid  99% 50-81-7 A92902-25G 230.49CNY Detail
Sigma-Aldrich (255564)  L-Ascorbicacid  ACS reagent, ≥99% 50-81-7 255564-500G 2,300.22CNY Detail
Sigma-Aldrich (255564)  L-Ascorbicacid  ACS reagent, ≥99% 50-81-7 255564-100G 719.55CNY Detail
Sigma-Aldrich (255564)  L-Ascorbicacid  ACS reagent, ≥99% 50-81-7 255564-5G 489.06CNY Detail
Sigma-Aldrich (95212)  L-Ascorbicacid  tested according to Ph.Eur. 50-81-7 95212-1KG 3,636.36CNY Detail
Sigma-Aldrich (95212)  L-Ascorbicacid  tested according to Ph.Eur. 50-81-7 95212-250G 1,850.94CNY Detail
Sigma (A2174)  L-Ascorbicacid  plant cell culture tested 50-81-7 A2174-500G 1,685.97CNY Detail
Sigma (A4544)  L-Ascorbicacid  suitable for cell culture, suitable for plant cell culture, ≥98% 50-81-7 A4544-500G 1,200.42CNY Detail
Sigma (A4544)  L-Ascorbicacid  suitable for cell culture, suitable for plant cell culture, ≥98% 50-81-7 A4544-100G 360.36CNY Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017


1.1 GHS Product identifier

Product name L-ascorbic acid

1.2 Other means of identification

Product number -
Other names L-Threoascorbic acid,Antiscorbutic factor,Vitamin C

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Processing Aids and Additives
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

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