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199728-56-8

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199728-56-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199728-56-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,2 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 199728-56:
(8*1)+(7*9)+(6*9)+(5*7)+(4*2)+(3*8)+(2*5)+(1*6)=208
208 % 10 = 8
So 199728-56-8 is a valid CAS Registry Number.

199728-56-8Downstream Products

199728-56-8Relevant articles and documents

Regioselective cyclization of thiocarboxylic amides with bisimidoyl chlorides - Synthesis of thiadiazolidines containing a ketenacetal substructure

Beckert, Rainer,Gruner, Margit

, p. 1245 - 1250 (2007/10/03)

The reactions between bisimidoyl chlorides of oxalic acid 1 and different thioamides derived from CH-acidic methylene compounds 2, 7 as well as thiobiuretes 9-11 were investigated. The hitherto unknown cyclic keten-N,S-acetals 3 with an oxalic acid substr

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