62624-30-0

Basic information

• Product Name: DL-ascorbic acid
• Synonyms: DL-ascorbic acid;Einecs 263-644-3;Ascorbic Acid (Non corn)
• CAS NO: 62624-30-0
• Molecular Formula: C₆H₈O₆
• Molecular Weight: 176.12412
• EINECS: 263-644-3
• Mol File: 62624-30-0.mol
• Article Data: 3

Chemical Properties

• Melting Point: 168.5°C
• Boiling Point: 227.71°C (rough estimate)
• Appearance: /
• Density: 1.3744 (rough estimate)
• Refractive Index: 1.5860 (estimate)
• PKA: 4.09±0.10(Predicted)
• CAS DataBase Reference: DL-ascorbic acid(CAS DataBase Reference)
• NIST Chemistry Reference: DL-ascorbic acid(62624-30-0)
• EPA Substance Registry System: DL-ascorbic acid(62624-30-0)

Safety Data

• Hazardous Substances Data: 62624-30-0(Hazardous Substances Data)

Usage

General Description

DL-Ascorbic acid, also known as Vitamin C, is a water-soluble vitamin that plays a crucial role in the body's ability to maintain healthy skin, connective tissue, and immune function. It is a powerful antioxidant that helps protect cells from damage caused by free radicals and environmental toxins. DL-Ascorbic acid is also essential for the production of collagen, a protein that is important for the health of skin, ligaments, and blood vessels. Additionally, it plays a key role in the absorption of iron and the synthesis of neurotransmitters. It is commonly found in fruits and vegetables such as oranges, strawberries, and bell peppers, and is also available as a dietary supplement. Overall, DL-Ascorbic acid is an important nutrient that supports overall health and well-being.

InChI:InChI=1/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2

Upstream product

• 50-81-7 ascorbic acid 
• 10504-35-5 D-ascorbic acid 
• 299-36-5 ascorbate 
• 63983-50-6 ascorbate 

Downstream Products

• 7723-73-1 5-(1,2-dihydroxy-ethyl)-furan-2,3,4-trione 
• 88-67-5 2-Iodobenzoic acid 
• 15042-01-0 O-5,6-isopropylidene-L-(+)ascorbic acid 
• 50-81-7 ascorbic acid 
• 10504-35-5 D-ascorbic acid 
• 65748-60-9 nitrosylbis(O,O'-dicyclohexyldithiophosphato)iron 
• 73522-24-4 Cu(NCHC₆H₄)4⁽¹⁺⁾*NO₃^(1-) 
• 1129294-89-8 5-(1,2-Dihydroxy-ethyl)-3,4-dihydroxy-5H-furan-2-one 
• 1128-23-0 L-gulono-1,4-lactone 
• 490-83-5 dehydro-L-ascorbic acid 

Relevant articles and documents

Oxidation reactions of thymol: A pulse radiolysis and theoretical study

The reactions of ?OH and O?-, with thymol, a monoterpene phenol and an antioxidant, were studied by pulse radiolysis technique and DFT calculations at B3LYP/6-31+G(d,p) level of theory. Thymol was found to efficiently scavenge OH radicals (k = 8.1 × 109 dm3 mol-1 s-1) to produce reducing adduct radicals, with an absorption maximum at 330 nm and oxidizing phenoxyl radicals, with absorption maxima at 390 and 410 nm. A major part of these adduct radicals was found to undergo water elimination, leading to phenoxyl radicals, and the process was catalyzed by OH- (or Na2HPO4). The rate of reaction of O?- with thymol was found to be comparatively low (k = 1.1 × 109 dm3 mol -1 s-1), producing H abstracted species of thymol as well as phenoxyl radicals. Further, these phenoxyl radicals of thymol were found to be repaired by ascorbate (k = 2.1 × 108 dm3 mol -1 s-1). To support the interpretation of the experimental results, DFT calculations were carried out. The transients (both adducts and H abstracted species) have been optimized in gas phase at B3LYP/6-31+G(d,p) level of calculation. The relative energy values and thermodynamic stability suggests that the ortho adduct (C6-OH adduct) to be most stable in the reaction of thymol with OH radicals, which favors the water elimination. However, theoretical calculations showed that C4 atom in thymol (para position) can also be the reaction center as it is the main contributor of HOMO. The absorption maxima (λmax) calculated from time-dependent density functional theory (TDDFT) for these transient species were close to those obtained experimentally. Finally, the redox potential value of thymol?/ thymol couple (0.98 V vs NHE) obtained by cyclic voltammetry is less than those of physiologically important oxidants, which reveals the antioxidant capacity of thymol, by scavenging these oxidants. The repair of the phenoxyl radicals of thymol with ascorbate together with the redox potential value makes it a potent antioxidant with minimum pro-oxidant effects.

Electron Transfer Reactions of Halogenated Aliphatic Peroxyl Radicals: Measurement of Absolute Rate Constants by Pulse Radiolysis

The peroxyl radicals Cl3OO., Cl2CHOO., ClCH2OO., CH3OO., .OOCCl2CO2-, .OOCHClCO2-, .OOCH2CO2-, .OOCF2CO2-, and (CH3)2C(OH)CH2OO. have been generated in aqueous alcohol solutions by pulse radiolysis using the Brunel and Hahn-Meitner accelerators.The absolute rate constants of the one-electron transfer reactions of related aliphatic peroxyl radicals with ascorbate, promethazine, phenol, and tyrosine have been found to increase with increasing substitution of chlorine atoms.For the reaction of the radical Cl3CO2. and promethazine, at pH 6, k 6.0 +/- 0.4 x 108 l mol-1 s-1 has been measured.For the analogous reaction of the radical ClCH2O2., k 3.3 +/- 0.2 x 107 l mol-1 s-1 has been determined.