143536-20-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143536-20-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,5,3 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143536-20:
(8*1)+(7*4)+(6*3)+(5*5)+(4*3)+(3*6)+(2*2)+(1*0)=113
113 % 10 = 3
So 143536-20-3 is a valid CAS Registry Number.
143536-20-3Relevant articles and documents
Selective synthesis of 2,5-dimethoxy-4-nitrobenzaldehyde
Cotelle,Catteau
, p. 2071 - 2076 (1992)
A selective preparation of 2,5-dimethoxy-4-nitrobenzaldehyde is proposed in a procedure involving the transformation of the aldehyde group to a diacetoxymethyl group.
