29769-77-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 29769-77-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,7,6 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 29769-77:
(7*2)+(6*9)+(5*7)+(4*6)+(3*9)+(2*7)+(1*7)=175
175 % 10 = 5
So 29769-77-5 is a valid CAS Registry Number.
29769-77-5Relevant articles and documents
REACTIVITY OF ORGANO LITHIUM REAGENTS ON DIMETHYL SQUARATE: A 1,2-ADDITION PROCESS LEADING TO NEW 1-HYDROXY-3,4 DIMETHOXY 3-CYCLOBUTENONE
Kraus, Jean Louis
, p. 1867 - 1870 (1985)
Lithium reagents react with dimethylsquarate at the carbonyl group according to a 1,2-addition process, leading to new 2-hydroxy-3,4 dimethoxy-3 cyclobutenone.