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457072-47-8

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457072-47-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 457072-47-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,0,7 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 457072-47:
(8*4)+(7*5)+(6*7)+(5*0)+(4*7)+(3*2)+(2*4)+(1*7)=158
158 % 10 = 8
So 457072-47-8 is a valid CAS Registry Number.

457072-47-8Relevant articles and documents

Polycyclic N-heterocyclic compounds. Part 621: Reaction of N-(quinazolin-4-yl)amidine derivatives with hydroxylamine hydrochloride and anti-platelet aggregation activity of the products

Okuda, Kensuke,Zhang, Ying-Xue,Ohtomo, Hiromi,Hirota, Takashi,Sasaki, Kenji

experimental part, p. 369 - 374 (2011/02/23)

The reactions of N-(5,6,7,8-tetrahydroquinazolin-4-yl)amidines and their amide oximes with hydroxylamine hydrochloride gave abnormal cyclization products via a ring cleavage of pyrimidine component accompanied with a ring closure of 1,2,4-oxadiazole to gi

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