91057-51-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91057-51-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,5 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91057-51:
(7*9)+(6*1)+(5*0)+(4*5)+(3*7)+(2*5)+(1*1)=121
121 % 10 = 1
So 91057-51-1 is a valid CAS Registry Number.
91057-51-1Relevant articles and documents
A ONE STEP SYNTHESIS OF ω-HYDROXYACETYLENIC CARBOXYLIC ACIDS
Cossy, J.,Pete, J. P.
, p. 573 - 574 (2007/10/02)
A convenient chemioselective method to prepare ω-hydroxyacetylenic carboxylic acids from unprotected ω-alkyn-1 ols and ω-bromo acids is described.
