L-ASCORBIC ACID

PRODUCT IDENTIFICATION
CAS NO.

50-81-7, 134-03-2 (sodium salt)

L-ASCORBIC ACID
EINECS NO. 200-066-2
FORMULA

C6H8O6
MOL WT. 176.13

H.S. CODE

 2936.27

TOXICITY

 Oral rat LD50: 11900 mg/kg
SYNONYMS Ascorbate; Vicomin C;
L-3-ketothreohexuronic acid; Ascorbicap; Acid Ascorbic; antiscorbic vitamin; antiscorbutic vitamin; cevitamic acid; 3-keto-L-gulofuranolactone; L-3-ketothreohexuronic acid lactone; laroscorbine; L-lyxoascorbic acid; 3-oxo-L-gulofuranolactone; L-xyloascorbic acid; Kyselina askorbova; Scorbacid; Vitacimin; Vitacin; Vitascorbol;
DERIVATION

 

CLASSIFICATION

VITAMINS /

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

White Crystalline Powder
MELTING POINT 192 C
BOILING POINT Decomposes
SPECIFIC GRAVITY 1.65
SOLUBILITY IN WATER 33%
pH 3 (5% sol.)
VAPOR DENSITY

 

AUTOIGNITION

660 C

NFPA RATINGS

 Health: 1 Flammability: 1 Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT

 
STABILITY Stable under ordinary conditions. Light sensitive.

APPLICATIONS

Ascorbic acid (also called vitamin C ) is a carbohydrate-like substance involved in the metabolic functions including synthesis of collagen, maintenance of the structural strength of the blood vessels, metabolism of certain amino acids, and the synthesis or release of hormones in the adrenal glands. It occurs as a white or slightly yellow crystal or powder with a slight acidic taste. Traditional synthesis of ascorbic acid is through the Reichstein process which requires bioconversion of sorbitol followed by a seven-step chemical process. Newly developted fermentation technology is used to reduce production costs of the key ascorbic intermediate, ketogulonic acid. Vitamin C has a very simple structure. Chemically, it is ketothreohexuronic acid. It is an antiscorbutic product. On exposure to air and light it gradually darkens. Ascorbic Acid is freely soluble in water; sparingly soluble in alcohol; insoluble in chloroform, ether, and benzene.

Vitamin C is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Ascorbic acid is easily oxidized. L form ascorbic acid (Vitamin C) biologically functions as a reductant and a coenzyme in several metabolic pathways. Ascorbic acid and its sodium, potassium, and calcium salts, used as food preservative, are water soluble. Ascorbates, fat-soluble esters of ascorbic acid, are also used as food antioxidant. Ascorbic acid can be easily destroyed under the exposure to oxygen, metals, light and heat.
SALES SPECIFICATION

BIBLIOGRAPHY

USP

APPEARANCE

White or Almost White Crystalline Powder

ASSAY

99.0% ~ 100.5%

OPTICAL ROTATION

+ 20.5 ~ +21.5

pH (5% SOLUTION)

2.1 ~ 2.6

COLOR OF SOLUTION

BY7 max

SULPHATED ASH

0.1% max

COPPER

5ppm max

IRON

2ppm max

OXALIC ACID

0.2% max

ARSENIC

3ppm max

HEAVY METALS (as Pb)

10ppm max
TRANSPORTATION
PACKING
25kgs in fiber drum, 13mts in Container
HAZARD CLASS Not regulated
OTHER CAS RN 129940-97-2; 14536-17-5; 30208-61-8; 50976-75-5; 56172-55-5; 56533-05-2; 57304-74-2; 57606-40-3; 89924-69-6;
MEMBERS OF ASCORBIC ACID PRODUCTS

Product

CAS RN

(+)-5,6-O-Cyclohexylidene-L-ascorbic acid

6614-52-4

(+)-Magnesium L-ascorbate

15431-40-0
(Palmitoyloxy)-L-ascorbic acid 1330-84-3
1-((1-Phenylcyclohexyl)acetyl)-4-(2-phenylethyl)piperazine ascorbate 36431-82-0
1-(p-Hydroxyphenyl)-2-(4-benzylpiperidino)propan-1-ol ascorbate 23249-59-4
1'-Ethylascorbigen 110326-15-3
1'-Methylascorbigen 92557-61-4
1-O-Methylascorbic acid 87804-24-8
2,2'-Nitrilodi-2(2')-deoxy-L-ascorbic acid monoammonium salt 49560-12-5
2,3-O-(2-Oxopropylidene)-L-ascorbic acid 74717-64-9
2-O-Methylascorbic acid 17860-87-6
2-O-Octadecylascorbic acid 98829-12-0

2-Phospho-L-ascorbic acid trisodium salt

66170-10-3
3-O-Dodecylcarbomethyl-L-ascorbic acid 133794-57-7
3-O-Ethyl-L-ascorbic acid 86404-04-8
3-O-Methylascorbic acid 13443-57-7
5,6-Diacetoxy-L-ascorbic acid 10583-73-0

5,6-Isopropylidene-L-ascorbic acid

15042-01-0
6-(Oleoyloxy)-L-ascorbic acid 2495-84-3
6-Chloro-6-deoxyascorbic acid 62983-43-1
6-Deoxy-6-bromoascorbic acid 62983-44-2
6-Deoxy-6-fluoroascorbic acid 142474-58-6
6-Deoxy-L-ascorbic acid 528-81-4
6-O-Acetylascorbic acid 20229-76-9
6-O-Phenylascorbic acid 85766-69-4
6-Phosphatidylascorbic acid 133849-98-6
Allantoin ascorbate 57448-83-6
Aluminum ascorbate 123638-49-3
Ammonium isoascorbate 93858-76-5
Antigrippen 76721-94-3
Arginine ascorbate 17463-61-5
Ascorbate anion 299-36-5
Ascorbate-2-phosphate 23313-12-4
Ascorbate-3-phosphate 21090-54-0
Ascorbic acid 2-(11-oxoolean-12-en-29-oic acid ethyl ester 3-yl-phosphate) 145079-98-7
Ascorbic acid 2-O-glucoside 129499-78-1
Ascorbic acid 2-sulfate 37627-95-5
Ascorbigen A 26676-89-1
Ascorbyl 6-stearate 10605-09-1
Ascorbyl dipalmitate 28474-90-0
Ascorbyl gamolenate 109791-32-4
Ascorbyl monolaurate 16690-40-7
Ascorbyl monostearate 51222-59-4
Ascorbyl palmitate 137-66-6
Ascorutin 8067-12-7
Ascumist 76847-52-4
Betaine L-ascorbate 18312-58-8
Boxazin 56333-48-3
Calcium ascorbate anhydrous 5743-27-1

Calcium L-ascorbate dihydrate

5743-28-2
Cepevit-K 75919-67-4
Chelarom 8066-25-9
Chloroquine diascorbate 38305-48-5
Choline ascorbate 576-01-2
cis-Bisascorbato(racemic-1,2-diaminocyclohexane)platinum(II) hydrate 92784-30-0
Cobalt-pentammine-ascorbate complex 111619-01-3
Cobalt-tetrammine-ascorbate complex 111619-00-2
D-Ascorbic acid 10504-35-5
Dehydroascorbic acid 490-83-5

Dehydro-L-ascorbic acid dimer

72691-25-9
D-erythro-Hex-2-enonic acid, gamma-lactone, sodium salt 7378-23-6
Diammineascorbatoplatinum(II) 92266-72-3
Dilpavan 76391-74-7
D-Isoascorbic Acid 89-65-6
Disodium Ascorbyl Sulfate 53910-28-4
DL-Ascorbic acid 62624-30-0
DL-Lysin L-ascorbate 93805-34-6
Efavit 87495-27-0
Efferalgan 77097-85-9
Eryfer 39284-23-6
Ferrlecit 100 77257-36-4
Ferroplex 55128-83-1
Formatrix 77630-33-2
Frubiase 56391-76-5
Gerioptil 8054-74-8
Glucoascorbic acid 528-88-1
Indulona 37270-70-5
Iron(2+) di-L-ascorbate 24808-52-4
Iron(III)-ascorbic acid complex 91260-12-7
Isoascorbic acid 89-65-6
L-Adrenalin ascorbinate 134-17-8

L-Ascorbic acid

50-81-7

L-Ascorbic acid 2-sulfate dipotassium salt

52174-99-9
L-Ascorbic acid a prostaglandin B2 monomeric ester 139574-02-0
L-Ascorbic acid dl-alpha-tocopherol phosphoric acid diester potassium salt 127061-56-7
L-Ascorbic acid DL-alpha-tocopherol phosphoric diester sodium salt 132746-07-7
L-Ascorbic acid morpholine salt 146019-55-8
L-Ascorbic acid prostaglandin B2 oligomeric ester 134376-90-2
L-Ascorbic acid, chlorpromazine complex 82678-20-4
L-Ascorbic acid, compd. with erythromycin 7690-37-1
L-Ascorbic acid, copper(2+) sulfate complex 83295-94-7
L-Ascorbic acid, L-cysteine complex 35412-64-7
L-Ascorbic acid, sodium salt 7317-67-1
L-Ascorbyl stearate 25395-66-8
L-Ascorbyl-2-phosphate magnesium salt 84309-23-9
L-Cysteine L-ascorbate 94313-97-0
L-Glucoascorbic acid 26566-39-2
Lithium L-ascorbate 80781-74-4
L-Lysine L-ascorbate 24404-95-3
L-Lysine L-ascorbate 94231-35-3
L-Lysine, L-ascorbic acid, alpha-catechin complex 77704-55-3
L-Rhamnoascorbic acid 27180-08-1
Magnesium di-L-ascorbate 15431-40-0
Magnesium ascorbyl phosphate 114040-31-2
Mercamine ascorbate 16031-82-6
N-Dimethylaminoacetylpartricin A 2-dimethylaminoethylamide diascorbate 202748-83-2
Nicotinamide ascorbate 1987-71-9
Optimax 62602-94-2
Oxidase, ascorbate 9029-44-1
Parentrovite 53262-66-1
Phakan 88254-06-2
Poky(ascorbic acid, formaldehyde) 69522-59-4
Potassium L-ascorbate 15421-15-5
Provitamin C 16533-48-5
Quinine ascorbate 146-40-7
Saccharoascorbic acid ethyl ester 146623-27-0
Sanumgerman 108334-52-7
Scorbamic acid 32764-43-5
Semidehydroascorbic acid 6730-29-6
Sodium erythorbate 6381-77-7
Sodium L-ascorbate 134-03-2
Tensophoril 111645-92-2
Visaline 174587-68-9
Vitafluor 137915-08-3
Zilascorb 20664-60-2
Zilascorb (2H) 122431-96-3

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