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160596-86-1

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160596-86-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 160596-86-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,0,5,9 and 6 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 160596-86:
(8*1)+(7*6)+(6*0)+(5*5)+(4*9)+(3*6)+(2*8)+(1*6)=151
151 % 10 = 1
So 160596-86-1 is a valid CAS Registry Number.

160596-86-1Relevant articles and documents

SYNTHESIS OF SOME PHENYLAZOPYRIDOTHIENOPYRIMIDINES

El-Dean, Adel M. Kamal

, p. 85 - 94 (2007/10/02)

2-Mercapto-5-phenylazo-4,6-dimethylpyridine-3-carbonitrile (3) reacts with halocompounds to give S-alkylated derivatives (4a-h) which upon treatment with sod. ethoxide in ethanol, the thienopyridines (5a-h) was obtained.Compound (5) converted into pyridothienopyrimidines (6a-e) or (7a,b) boiling with triethyl orthoformate or acetic anhydride.Also it can be converted into pyridothienotriazine (8a-d) by treating with nitrous acid.Chloropyridothienopyrimidine (10a,b) was obtained by refluxing compound 6a or 7a with POCl3.Key words: Synthesis, reactions, thienopyridine, pyridothienopyrimidine, pyridothienotriazine.

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