78387-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78387-21-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,3,8 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78387-21:
(7*7)+(6*8)+(5*3)+(4*8)+(3*7)+(2*2)+(1*1)=170
170 % 10 = 0
So 78387-21-0 is a valid CAS Registry Number.
78387-21-0Relevant articles and documents
FORMATION OF PYRROLES FROM β-CHLOROAZOALKENES AND 1,3-DICARBONYL COMPOUNDS
Gilchrist, Thomas L.,Parton, Brian,Stevens, John A.
, p. 1059 - 1062 (1981)
The azoalkenes (1) have been prepared from the corresponding hydrazones of dichloroacetaldehyde; they react with 1,3-dicarbonyl compounds to give first the addition-elimination products (4) and then pyrroles (6).
