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81128-30-5

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81128-30-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81128-30-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,2 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81128-30:
(7*8)+(6*1)+(5*1)+(4*2)+(3*8)+(2*3)+(1*0)=105
105 % 10 = 5
So 81128-30-5 is a valid CAS Registry Number.

81128-30-5Downstream Products

81128-30-5Relevant articles and documents

A SIMPLE METHOD FOR INTRODUCTION OF ACYL GROUPS INTO PYRIDINE NUCLEI VIA TRIMETHYLSTANNYL-PYRIDINES AND QUINOLINES.

Yamamoto, Yutaka,Yanagi, Akihiko

, p. 41 - 44 (2007/10/02)

The 2-trimethylstannyl (TMSn) derivatives of pyridine and quinoline were directly treated with acyl chlorides to afford the corresponding 2-acyl-pyridines and -quinolines in good yields.On the other hand, replacement of the 3- and 4-TMSn groups by acyl groups was satisfactorily achieved by catalysis of palladium compound such as PdCl2 or PdCl2(PPh3)2.

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