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129633-77-8

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129633-77-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129633-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,6,3 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129633-77:
(8*1)+(7*2)+(6*9)+(5*6)+(4*3)+(3*3)+(2*7)+(1*7)=148
148 % 10 = 8
So 129633-77-8 is a valid CAS Registry Number.

129633-77-8Downstream Products

129633-77-8Relevant articles and documents

Regioselective Synthesis of 2-Functionalized Thiophenes by Condensation of α-Mercapto Compounds with β-Aminoenone Derivatives

Alberola, Angel,Andres, Jose M.,Gonzalez, Alfonso,Pedrosa, Rafael,Pradanos, Pedro

, p. 2537 - 2547 (2007/10/02)

2-Acylthiophenes and ethyl 2-thiophenecarboxylates are prepared regioselectively by reaction of 3-chloroenones and 2-acylenammonium chlorides with α-mercapto derivatives in good to moderate yields.

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