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L(+)-Ascorbic acid

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L(+)-Ascorbic acid

EINECS 200-066-2
CAS No. 50-81-7 Density 1.954 g/cm3
Solubility Water solubility: 50 mg/mL at 20 °C, clear, nearly colorless Melting Point 190-194 °C (dec.)
Formula C6H8O6 Boiling Point 415.8 °C at 760 mmHg
Molecular Weight 176.14 Flash Point 180.4 °C
Transport Information Appearance white crystals
Safety 24/25-36-26 Risk Codes 20/21/22-36/37/38
Molecular Structure Molecular Structure of 50-81-7 (L(+)-Ascorbic acid) Hazard Symbols HarmfulXn
Synonyms

 

L(+)-Ascorbic acid Specification

L(+)-Ascorbic acid ( CAS NO. 50-81-7) is a naturally occurring organic compound with antioxidant properties. It is a white solid, but impure samples can appear yellowish. It dissolves well in water to give mildly acidic solutions. It is a white crystalline vitamin present in plants, esp citrus fruits, tomatoes, and green vegetables. A deficiency in the diet of man leads to scurvy. With the formula C6H8O6 , it is also called vitamin C.

Physical properties about L(+)-Ascorbic acid are:
(1)ACD/LogP: -0.915; (2)ACD/LogD (pH 5.5): -2.53; (3)ACD/LogD (pH 7.4): -4.12; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 1.00; (6)ACD/KOC (pH 5.5): 1.00; (7)ACD/KOC (pH 7.4): 1.00; (8)#H bond acceptors: 6; (9)#H bond donors: 4; (10)#Freely Rotating Bonds: 6; (11)Index of Refraction: 1.711 ; (12)Molar Refractivity: 35.261 cm3; (13)Molar Volume: 90.124 cm3; (14)Polarizability: 13.979 10-24cm3; (15)Surface Tension: 140.561996459961 dyne/cm; (16)Density: 1.954 g/cm3; (17)Flash Point: 180.386 °C; (18)Enthalpy of Vaporization: 77.282 kJ/mol; (19)Boiling Point: 415.833 °C at 760 mmHg

Uses of L(+)-Ascorbic acid: 
Ascorbic acid is easily oxidized and so is used as a reductant in photographic developer solutions (among others) and as a preservative. In fluorescence microscopy and related fluorescence-based techniques, ascorbic acid can be used as an antioxidant to increase fluorescent signal and chemically retard dye photobleaching. It is also commonly used to remove dissolved metal stains, such as iron, from fiberglass swimming pool surfaces. In plastic manufacturing, ascorbic acid can be used to assemble molecular chains more quickly and with less waste than traditional synthesis methods.

Safety information of L(+)-Ascorbic acid:
When you are using this chemical, please be cautious about it as the following:
1. Avoid contact with skin and eyes;
2. Wear suitable protective clothing;
3. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice;

You can still convert the following datas into molecular structure:
(1)InChI=1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1;
(2)InChIKey=CIWBSHSKHKDKBQ-JLAZNSOCSA-N;
(3)Smiles[C@H]1(C(=C(C(=O)O1)O)O)[C@H](CO)0;

The toxicity data of L(+)-Ascorbic acid is as follows:

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
man TDLo intravenous 2300mg/kg/2D (2300mg/kg) BLOOD: OXIDANT RELATED (GPD DEFICIENT) ANEMIA Annals of Internal Medicine. Vol. 82, Pg. 810, 1975.
mouse LD50 intraperitoneal 643mg/kg (643mg/kg)   Progress in Mutation Research. Vol. 1, Pg. 682, 1981.
mouse LD50 intravenous 518mg/kg (518mg/kg)   Research Progress in Organic-Biological and Medicinal Chemistry. Vol. 2, Pg. 269, 1970.
mouse LD50 oral 3367mg/kg (3367mg/kg)   National Cancer Institute Screening Program Data Summary, Developmental Therapeutics Program. Vol. JAN1986,
rat LD50 intravenous > 4gm/kg (4000mg/kg) BEHAVIORAL: ALTERED SLEEP TIME (INCLUDING CHANGE IN RIGHTING REFLEX)

BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)
Oyo Yakuri. Pharmacometrics. Vol. 12, Pg. 131, 1976.
rat LD50 oral 11900mg/kg (11900mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

SENSE ORGANS AND SPECIAL SENSES: LACRIMATION: EYE

GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"
Oyo Yakuri. Pharmacometrics. Vol. 12, Pg. 131, 1976.
rat LD50 subcutaneous > 10gm/kg (10000mg/kg)   Oyo Yakuri. Pharmacometrics. Vol. 12, Pg. 131, 1976.
women LDLo intravenous 900mg/kg (900mg/kg) KIDNEY, URETER, AND BLADDER: "CHANGES IN TUBULES (INCLUDING ACUTE RENAL FAILURE, ACUTE TUBULAR NECROSIS)"

Archives of Internal Medicine. Vol. 145, Pg. 950, 1985.
 

 

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