670237-49-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 670237-49-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,0,2,3 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 670237-49:
(8*6)+(7*7)+(6*0)+(5*2)+(4*3)+(3*7)+(2*4)+(1*9)=157
157 % 10 = 7
So 670237-49-7 is a valid CAS Registry Number.
670237-49-7Relevant academic research and scientific papers
Synthesis of the first fluoro(phosphanyl)- and diphosphanyl-stannanes and surprising formation of [P(SnMe3)4]+SiF 5- ?
Driess, Matthias,Merz, Klaus,Monse, Christian
, p. 2608 - 2609 (2007/10/03)
Monophosphanylation of the difluorostannane Is2SnF2 (Is = 2,4,6-triisopropylphenyl) with Si(PH2)4 furnishes the first isolable fluoro(phosphanyl)stannane IS2Sn(F)PH2 1, which readily underg
