161990-32-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161990-32-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,9,9 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 161990-32:
(8*1)+(7*6)+(6*1)+(5*9)+(4*9)+(3*0)+(2*3)+(1*2)=145
145 % 10 = 5
So 161990-32-5 is a valid CAS Registry Number.
161990-32-5Relevant articles and documents
A CONVENIENT SYNTHESIS OF ACYCLIC CONJUGATED ENEDIYNES
Shibuya, Masayuki,Sakai, Yasuhiro,Naoe, Yoshimitsu
, p. 897 - 898 (2007/10/02)
Novel synthetic method for acyclic cis-hex-3-ene-1,5-diyne derivatives via elimination of tert-hydroxy group has been described.