153709-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 153709-27-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,7,0 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 153709-27:
(8*1)+(7*5)+(6*3)+(5*7)+(4*0)+(3*9)+(2*2)+(1*7)=134
134 % 10 = 4
So 153709-27-4 is a valid CAS Registry Number.
153709-27-4Relevant articles and documents
A novel route to 2-alkoxy/aryloxythiophenes via Simmons-Smith reaction on acylketene O,S-acetals
Bhat,Ila,Junjappa
, p. 959 - 960 (1993)
A novel route to 2-alkoxy/aryloxy-4-arylthiophenes 4a-k and the corresponding 3,4-annulated thiophene 7 has been developed by subjecting the respective acylketene O,S-acetals 1a-k and 6 to Simmons-Smith reaction conditions (zinc-copper/diiodomethane).
