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31444-09-4

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31444-09-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31444-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,4,4 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 31444-09:
(7*3)+(6*1)+(5*4)+(4*4)+(3*4)+(2*0)+(1*9)=84
84 % 10 = 4
So 31444-09-4 is a valid CAS Registry Number.

31444-09-4Downstream Products

31444-09-4Relevant articles and documents

An unexpected reaction of cinobufagin analogues in the presence of PPh3/I2

Chen, Xubing,Guo, Dean,Hou, Jinjun,Lei, Min,Long, Huali,Wu, Wanying,Zhang, Yanzhi,Zhang, Zijia,Zhou, Yang

, (2020)

Abstract: An unexpected reaction of cinobufagin analogues in the presence of PPh3/I2 in EtOAc at room temperature to obtain diene compounds has been described. The whole process is carried out under mild conditions and the desired products are formed in good yields. It provides a simple, effective, and novel reaction method for the synthesis of diene compounds from corresponding substrates. Graphic abstract: [Figure not available: see fulltext.]

Pettit et al.

, p. 1566 (1970)

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