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79587-87-4

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79587-87-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79587-87-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,5,8 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 79587-87:
(7*7)+(6*9)+(5*5)+(4*8)+(3*7)+(2*8)+(1*7)=204
204 % 10 = 4
So 79587-87-4 is a valid CAS Registry Number.

79587-87-4Relevant articles and documents

Studies on Fused-ring Mesoionic Thiazolothienopyrimidine Systems

Talukdar, P. D.,Sengupta, S. K.,Datta, A. K.

, p. 538 - 542 (2007/10/02)

Cyclodehydration of 2-carboxymethylmercaptothienopyrimidin-4(3H)-ones (IV) have been studied.IV (R3=R4=Ph and R3=Me,R4=Ph) on reaction with acetic anhydride and pyridine mixture readily yield stable fusedring mesoionic systems (VI).While IV (R3=Ph,

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