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83313-10-4

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83313-10-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83313-10-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,3,1 and 3 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 83313-10:
(7*8)+(6*3)+(5*3)+(4*1)+(3*3)+(2*1)+(1*0)=104
104 % 10 = 4
So 83313-10-4 is a valid CAS Registry Number.

83313-10-4Upstream product

83313-10-4Downstream Products

83313-10-4Relevant articles and documents

Oxidation of Ascorbic Acid and Dehydroascorbic Acid by Superoxide Ion in Aprotic Media

Sawyer, Donald T.,Chiericato, Glaico,Tsuchiya, Tohru

, p. 6273 - 6278 (1982)

In dimethylformamide, superoxide ion (O2-) oxidizes ascorbic acid (H2A) to dehydroascorbic acid (A).The rate-limiting step is first order for each reactant and has a second-order rate constant (k) of 2.8 x 104 M-1 s-1; the overall stoichiometry is 3H2A molecules per 2O2- ions.Addition of O2- to dehydroascorbic acid (A) results in its rapid oxidation (k = 3.3 x 104 M-1 s-1), with an overall stoichiometry of 2O2- per A.The major products of the process are oxalate ion and the anion of threonic acid.On the basis of the reaction stoichiometries, kinetics, and products, self-consistent mechanisms are proposed for the oxidation of ascorbic acid and dehydroascorbic acid.

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