257940-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257940-74-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,9,4 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 257940-74:
(8*2)+(7*5)+(6*7)+(5*9)+(4*4)+(3*0)+(2*7)+(1*4)=172
172 % 10 = 2
So 257940-74-2 is a valid CAS Registry Number.
257940-74-2Relevant academic research and scientific papers
A novel platinum methylene complex
Praefcke, Klaus,Bilgin, Belkiz,Pickardt, Joachim,Borowski, Marina
, p. 155 - 161 (2007/10/03)
The dichlorobridged diplatinum organyls 4 and 5 undergo the expected chlorine-iodine exchange when treated with lithium iodide in diiodomethylene. Surprisingly, a second type of product, the triple-bridged (one methylene group plus two iodo units between
