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299401-11-9

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299401-11-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 299401-11-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,9,4,0 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 299401-11:
(8*2)+(7*9)+(6*9)+(5*4)+(4*0)+(3*1)+(2*1)+(1*1)=159
159 % 10 = 9
So 299401-11-9 is a valid CAS Registry Number.

299401-11-9Downstream Products

299401-11-9Relevant academic research and scientific papers

Action of carbon disulfide and phenylthioisocyanate on naphthopyrane derivatives: Production of naphtopyranopyrimidodithiones and naphtopyranopyrimidothiones

Messaad, Mehdi,Chabchoub, Fakher,Ennigrou, Rached,Salem, Mansour

experimental part, p. 1145 - 1151 (2009/04/06)

Naphtopyranes 1 react with carbon disulfide and phenylthioisocyanate to give the naphtopyranopyrimidodithiones 3 and the naphtopyranopyrimido-thiones 4 respectively. The structure of products 3 and 4 is confirmed by IR, NMR, and for some of the compounds

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