21165-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21165-25-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,6 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21165-25:
(7*2)+(6*1)+(5*1)+(4*6)+(3*5)+(2*2)+(1*5)=73
73 % 10 = 3
So 21165-25-3 is a valid CAS Registry Number.
21165-25-3Relevant articles and documents
A NEW APPROACH TO α-ALKOXY- AND α-ALKYLTHIOKETONES FROM CONJUGATED NITROALKENES
Varma, Rajender S.,Kabalka, George W.
, p. 443 - 450 (2007/10/02)
α-Substituted ketones are obtained in two steps by reduction of the α,β-unsaturated nitroalkenes using SnCl2*2H2O in alcoholic media followed by hydrolysis with levulinic acid.
