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198645-63-5

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198645-63-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198645-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,6,4 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 198645-63:
(8*1)+(7*9)+(6*8)+(5*6)+(4*4)+(3*5)+(2*6)+(1*3)=195
195 % 10 = 5
So 198645-63-5 is a valid CAS Registry Number.

198645-63-5Relevant articles and documents

Synthesis, antitumor activity of 2-amino-4H-benzo[h]chromene derivatives, and structure-activity relationships of the 3- and 4-positions

El-Agrody, Ahmed M.,Fouda, Ahmed M.,Khattab, Essam Shawky A. E. H.

, p. 6105 - 6120 (2013/11/06)

Several 2-amino-4H-benzo[h]chromenes (3a-i) and (5a-h) were obtained by reaction of 4-chloro-1-naphthol (1) with α-cyanocinnamonitrile (2a-i) or ethyl α-cyanocinnamate derivatives (4a-h), respectively. Structures of these compounds were established on the

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