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690634-09-4

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690634-09-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 690634-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,6,3 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 690634-09:
(8*6)+(7*9)+(6*0)+(5*6)+(4*3)+(3*4)+(2*0)+(1*9)=174
174 % 10 = 4
So 690634-09-4 is a valid CAS Registry Number.

690634-09-4Downstream Products

690634-09-4Relevant articles and documents

Benzotriazole-assisted thioacylation

Katritzky, Alan R.,Witek, Rachel M.,Rodriguez-Garcia, Valerie,Mohapatra, Prabhu P.,Rogers, James W.,Cusido, Janet,Abdel-Fattah, Ashraf A. A.,Steel, Peter J.

, p. 7866 - 7881 (2007/10/03)

Benzotriazole reagents for thioacylation (RCSBt), thiocarbamoylation (RR'NCSBt), aryl/alkoxy-thioacylation (ROCSBt), and aryl/alkylthiothioacylation (RSCSBt) are synthesized, and their utility is assessed by syntheses of representative heteroaryl thioureas 3a-g, thioamides 15a-s, thionoesters 16a-h, thiocarbamates 17a-e, dithiocarbamates 18a-d, thiocarbonates 19a-c, and dithiocarbonates 20a-c.

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