Cas 91021-34-0,Pyrimidine, 4-phenyl-6-[(triphenylphosphoranylidene)methyl]-

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Check Digit Verification of cas no

The CAS Registry Mumber 91021-34-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,2 and 1 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 91021-34:
(7*9)+(6*1)+(5*0)+(4*2)+(3*1)+(2*3)+(1*4)=90
90 % 10 = 0
So 91021-34-0 is a valid CAS Registry Number.

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91021-34-0Relevant academic research and scientific papers

REDUCTIVE FORMATION OF PYRIMIDINYLMETHYLENEPHOSPHORANES BY REACTION OF TRICHLOROMETHYLPYRIMIDINES WITH TRIPHENYLPHOSPHINE

Konno, Shoetsu,Sato, Yumi,Sakamoto, Takao,Katagiri, Nobuya,Yamanaka, Hiroshi

, p. 1331 - 1334 (2007/10/02)

The reaction of trichloromethylpyrimidines (1) with ca. 5 equivalent amounts of TPP gave pyrimidinylmethylenephosphoranes (9), whereas in the presence of 2 equivalent amounts of TPP, 1 was converted into the corresponding pyrimidinylchloromethylenephospho

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