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67638-23-7

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67638-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67638-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 67638-23:
(7*6)+(6*7)+(5*6)+(4*3)+(3*8)+(2*2)+(1*3)=157
157 % 10 = 7
So 67638-23-7 is a valid CAS Registry Number.

67638-23-7Relevant articles and documents

Microwave-mediated synthesis of 3-unsubstituted β-lactams with aqueous trimethylborane

Yadav, Ram Naresh,Banik, Indrani,Banik, Bimal Krishna

, p. 1381 - 1384 (2020/06/27)

A new microwave-induced method for the preparation of 3-unsubstituted β-lactams is explored via aqueous trimethylborane-mediated reaction of the corresponding xanthates.

Heterocyclic compounds. X. Bis(2-chloroethyl)amino substituted β-lactams as potential antineoplastic agents (1)

Manhas,Amin,Glazer

, p. 283 - 288 (2007/10/08)

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