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L(+)-Ascorbic acid

L(+)-Ascorbic acid
L(+)-Ascorbic acid
CAS No.
50-81-7
Chemical Name:
L(+)-Ascorbic acid
Synonyms
100M;Cebid;Cecon;Celin;Cevex;Cewin;Cipca;Hicee;IDO-C;Vicin
CBNumber:
CB7853704
Molecular Formula:
C6H8O6
Formula Weight:
176.12
MOL File:
50-81-7.mol

L(+)-Ascorbic acid Properties

Melting point:
190-194 °C (dec.)
alpha 
20.5 º (c=10,H2O)
Density 
1,65 g/cm3
refractive index 
21 ° (C=10, H2O)
FEMA 
2109 | ASCORBIC ACID
storage temp. 
0-6°C
solubility 
H2O: 50 mg/mL at 20 °C, clear, nearly colorless
form 
powder
pka
4.04, 11.7(at 25℃)
color 
white to slightly yellow
PH
1.0 - 2.5 (25℃, 176g/L in water)
Water Solubility 
333 g/L (20 ºC)
Merck 
14,830
BRN 
84272
Stability:
Stable. May be weakly light or air sensitive. Incompatible with oxidizing agents, alkalies, iron, copper.
CAS DataBase Reference
50-81-7(CAS DataBase Reference)
NIST Chemistry Reference
L-Ascorbic acid(50-81-7)
EPA Substance Registry System
L-Ascorbic acid(50-81-7)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xn
Risk Statements  20/21/22-36/37/38
Safety Statements  24/25-36-26
RIDADR  UN 1648 3 / PGII
WGK Germany  1
RTECS  CI7650000
TSCA  Yes
HS Code  29362700
Hazardous Substances Data 50-81-7(Hazardous Substances Data)
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H226 Flammable liquid and vapour Flammable liquids Category 3 Warning
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P370+P378 In case of fire: Use … for extinction.

L(+)-Ascorbic acid price More Price(74)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 1043003 Ascorbic acid United States Pharmacopeia (USP) Reference Standard 50-81-7 1g $348.4 2017-11-08 Buy
Sigma-Aldrich 255564 L-Ascorbic acid ACS reagent, ≥99% 50-81-7 5g $44.2 2017-11-08 Buy
TCI Chemical A0537 L-Ascorbic Acid >99.0%(T) 50-81-7 25g $14 2017-11-08 Buy
TCI Chemical A0537 L-Ascorbic Acid >99.0%(T) 50-81-7 500g $38 2017-11-08 Buy
Alfa Aesar 11188 L-(+)-Ascorbic acid, 98+% 50-81-7 2kg $175 2017-11-08 Buy

L(+)-Ascorbic acid Chemical Properties,Uses,Production

Chemical Properties

White crystals

Uses

antiscorbutic, antiviral

Uses

analgesic, antipyretic

Uses

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.

Definition

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

General Description

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

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.

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 .

Fire Hazard

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

L(+)-Ascorbic acid Preparation Products And Raw materials

Raw materials

Preparation Products


L(+)-Ascorbic acid Suppliers

Global( 460)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
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Shanghai Aladdin Bio-Chem Technology Co.,LTD 021-20337333/400-620-6333
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Wuhai Shuou Technology Co., Ltd. 18872220797 / QQ:2355327072
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Wuhan Taiyicheng Biopharmaceutical Co., Ltd. 027-88320699, 027-88059985
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Zhuhai JiaYi Biological Technology Co., Ltd. 18902875762 (可直接添加手机号微信)
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Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) sh@meryer.com China 40403 62

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