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17512-21-9

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17512-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17512-21-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,5,1 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17512-21:
(7*1)+(6*7)+(5*5)+(4*1)+(3*2)+(2*2)+(1*1)=89
89 % 10 = 9
So 17512-21-9 is a valid CAS Registry Number.

17512-21-9Downstream Products

17512-21-9Relevant articles and documents

PHOTOSENSITIZED OXYGENATION OF CYCLIC SULFIDES. SELECTIVE C-S BOND CLEAVAGE

Takata, Toshikazu,Ishibashi, Koichi,Ando, Wataru

, p. 4609 - 4612 (2007/10/02)

TPP-Senzitized photooxidation of five-membered ring sulfides in aprotic solvent afforded C-S bond cleavage products, unlike six- and seven-membered ring sulfides which gave only S-oxidation products.The products as well as substitution and concentration effects suggest that C-S bond cleavage depends upon acidity of α-proton of persulfoxide intermediate.

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