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22168-32-7

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22168-32-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22168-32-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,6 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 22168-32:
(7*2)+(6*2)+(5*1)+(4*6)+(3*8)+(2*3)+(1*2)=87
87 % 10 = 7
So 22168-32-7 is a valid CAS Registry Number.

22168-32-7Relevant 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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