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13664-08-9

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13664-08-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13664-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,6,6 and 4 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 13664-08:
(7*1)+(6*3)+(5*6)+(4*6)+(3*4)+(2*0)+(1*8)=99
99 % 10 = 9
So 13664-08-9 is a valid CAS Registry Number.

13664-08-9Relevant articles and documents

A facile and practical one-pot synthesis of β-oxo thioamides from β-oxo amides and isothiocyanates

Huang, Peng,Xiang, Dexuan,Zhou, Yang,Liang, Yongjiu,Na, Tianhai,Dong, Dewen

experimental part, p. 1797 - 1800 (2010/03/30)

A facile and practical one-pot synthesis of β-oxo thioamides from β-oxo amides has been developed. By treatment with isothiocyanates in ethanol in the presence of potassium carbonate, a series of β-oxo amides was converted, under reflux, in high yields in

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