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13749-73-0

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13749-73-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13749-73-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,4 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13749-73:
(7*1)+(6*3)+(5*7)+(4*4)+(3*9)+(2*7)+(1*3)=120
120 % 10 = 0
So 13749-73-0 is a valid CAS Registry Number.

13749-73-0Relevant articles and documents

Note on the Preparation of N,N-Disubstituted Aliphatic Thiocarboxamides, N-Substituted Thiolactames, and Aromatic Thiocarboxylates

Kantlehner, Willi,Haug, Erwin,Farkas, Michael

, p. 1582 - 1587 (2007/10/02)

Hydrogen sulfide reacts with the N,N-dimethylformamide acetal 1 to give N,N-(dimethyl)thioformamide (2a).The thioamides 2a-e and the thiolactams 2f,g are prepared by thiolysis of the nitriles 3a-g.The action of hydrogen sulfide on nitriles 5a-f affords the O-ethyl thiocarboxylates 6a-f.The preparation of the nitriles 3g and 5a-f is described.

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