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70557-64-1

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70557-64-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70557-64-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,5,5 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 70557-64:
(7*7)+(6*0)+(5*5)+(4*5)+(3*7)+(2*6)+(1*4)=131
131 % 10 = 1
So 70557-64-1 is a valid CAS Registry Number.

70557-64-1Relevant articles and documents

CONVENIENT SYNTHESIS OF S-TRIMETHYLSILYL ESTERS OF DITHIO- AND TETRATHIOPHOSPHORIC ACIDS

Nizamov, Il'yas,Kuznetzov, Vladislav A.,Batyeva, Elvira S.,Al'Fonsov, Vladimir A.,Pudovik, Arkady N.

, p. 179 - 186 (2007/10/02)

S-Trimethylsilyl esters of dithio- and tetrathiophosphoric acids were obtained in the reaction of tetraphosphorus decasulfide with alkoxy- and alkylthiotrimethylsilanes, trimethylsilyl enol ethers and bis(trimethylsilyloxy)alkylenes and phenylene. Key words: S-Trimethylsilyl esters of dithio- and tetrathiophosphoric acids; tetraphosphorus decasulfide; alkoxy- and alkylthiotrimethylsilanes; trimethylsilyl enol ethers; bis(trimethylsilyloxy)alkylenes

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