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83740-99-2

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83740-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83740-99-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,4 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83740-99:
(7*8)+(6*3)+(5*7)+(4*4)+(3*0)+(2*9)+(1*9)=152
152 % 10 = 2
So 83740-99-2 is a valid CAS Registry Number.

83740-99-2Downstream Products

83740-99-2Relevant articles and documents

Thiono and Dithio Esters, XXX. Reactions of Isocyanides with Thiooxalates

Hartke, Klaus,Kumar, Arvind,Henssen, Guenther,Quante, Josef

, p. 3107 - 3114 (2007/10/02)

Dimethyl tetrathiooxalate (1) reacts with all isocyanides 2 investigated to form 2-imino-1,3-dithioles 4 in high yield.Complex mixtures of products, however, are obtained from O,O-dimethyl dithiooxalate (5) and isocyanides.The main product is always the 1,3-thiazetidine 7, byproducts are the azetidinethiones 8 and the 3,3'-biazetidine-2,2'-dithiones 6.

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