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156139-71-8

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156139-71-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156139-71-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,1,3 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156139-71:
(8*1)+(7*5)+(6*6)+(5*1)+(4*3)+(3*9)+(2*7)+(1*1)=138
138 % 10 = 8
So 156139-71-8 is a valid CAS Registry Number.

156139-71-8Downstream Products

156139-71-8Relevant articles and documents

The Reaction of Active Methylene Reagents With Sulfur and Phenyl Isothiocyanate: Novel Synthesis of Thiazole, Thiazolopyrimidine, and 4,5'-Bithiazolyl Derivatives

Mohareb, Rafat Milad,Wardakhan, Wagnat Wahba,El-Ablack, Fawzia Zakeria

, p. 747 - 760 (2007/10/02)

The active methylene reagents 1a-i reacted with phenyl isothiocyanate and sulfur to afford the thiazole derivatives 2a-i.The reactivity of 2a and 2f towards various chemical reagents was studied.

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