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344444-45-7

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344444-45-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 344444-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,4,4 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 344444-45:
(8*3)+(7*4)+(6*4)+(5*4)+(4*4)+(3*4)+(2*4)+(1*5)=137
137 % 10 = 7
So 344444-45-7 is a valid CAS Registry Number.

344444-45-7Relevant articles and documents

CONTRIBUTIONS TO THE STUDY OF SOME HETEROCYCLES, LVI THE NITRATION OF 2-(N-ACETYL)-ANILINO-4-CHLOROLETHYLTHIAZOLE

Simiti, I.,Demian, H.,Pop, R. D.

, p. 299 - 304 (2007/10/02)

The nitration of 2-(N-acetyl)-anilino-4-chloromethylthiazole was studied.Regardless of the reaction conditions, the first nitro group becomes attached to position 3 of the thiazole ring.The structures of the compounds obtained were established by chemical and physical methods.

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