157224-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157224-66-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,2,2 and 4 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 157224-66:
(8*1)+(7*5)+(6*7)+(5*2)+(4*2)+(3*4)+(2*6)+(1*6)=133
133 % 10 = 3
So 157224-66-3 is a valid CAS Registry Number.
157224-66-3Relevant academic research and scientific papers
Carbamate oxime reduction: A new route to C3-amino-1,4-benzodiazepines
Bourrain,Showell
, p. 505 - 508 (2007/10/02)
A mild reduction method of C3-oximido-1,4-benzodiazepines to afford the C3-amino derivatives is described. The key step involves the formation of a carbamate oxime intermediate. The greater reactivity of the C3-(ethylaminocarbonyl)oximido-1,4-benzodiazepi
