131531-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131531-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,5,3 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 131531-59:
(8*1)+(7*3)+(6*1)+(5*5)+(4*3)+(3*1)+(2*5)+(1*9)=94
94 % 10 = 4
So 131531-59-4 is a valid CAS Registry Number.
131531-59-4Relevant articles and documents
SYNTHESIS OF MONOCILLIN IV DIMETHYL ETHER
Kasar, R.A.,Wakharkar, R.D.,Chanda, B.,Ayyangar, N.R.
, p. 6445 - 6446 (1990)
The first total synthesis of Monocillin IV dimethyl ether (1a) was achieved from methyl-9-acetoxy-6-decenoate (6) and orsellinic acid dimethyl ether (7) in two steps.