199442-12-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199442-12-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,4,4 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 199442-12:
(8*1)+(7*9)+(6*9)+(5*4)+(4*4)+(3*2)+(2*1)+(1*2)=171
171 % 10 = 1
So 199442-12-1 is a valid CAS Registry Number.
199442-12-1Relevant articles and documents
Enantioselective tautomerization of a new metastable enol
Henze, Ruediger,Duhamel, Lucette,Lasne, Marie-Claire
, p. 3363 - 3365 (1997)
A new metastable enol was prepared by the reaction of 2-benzyl acrolein with thiobenzoic acid in aprotic solvents. The enantioselective tautomerization of this enol was studied and enantiomeric excesses up to 71% were found. The absolute configuration of