256531-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256531-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,5,3 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 256531-31:
(8*2)+(7*5)+(6*6)+(5*5)+(4*3)+(3*1)+(2*3)+(1*1)=134
134 % 10 = 4
So 256531-31-4 is a valid CAS Registry Number.
256531-31-4Relevant academic research and scientific papers
A Highly Basic and Nucleophilic Triphenylphosphine, Tris(2,4,6-trimethoxyphenyl)phosphine, and Related Compounds
Wada, Masanori,Higashizaki, Shogo,Tsuboi, Aki
, p. 467 - 490 (2007/10/02)
A series of methoxy substituted triphenylphosphines, R3-nPhnP , and their tertiary phosphonium perchlorates have been prepared.The basicity of the title compound, (1), in acetone was f
