41955-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 41955-34-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,9,5 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 41955-34:
(7*4)+(6*1)+(5*9)+(4*5)+(3*5)+(2*3)+(1*4)=124
124 % 10 = 4
So 41955-34-4 is a valid CAS Registry Number.
41955-34-4Relevant articles and documents
The chromium Reformatsky reaction: Access to adjacent quarternary centers
Wessjohann, Ludger,Wild, Harry
, p. 512 - 514 (2007/10/03)
α-Bromo ketones, -esters and -nitriles react with chromium dichloride and ketones in a Barbier-type reaction to yield the kinetic crossed aldol products with one or two new quarternary centers. The reaction does not require special activation of the reage
