91420-77-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91420-77-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,4,2 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91420-77:
(7*9)+(6*1)+(5*4)+(4*2)+(3*0)+(2*7)+(1*7)=118
118 % 10 = 8
So 91420-77-8 is a valid CAS Registry Number.
91420-77-8Relevant articles and documents
THE REACTION OF DICHLOROCARBENE WITH β-ETHANOLAMINES. STEREOSPECIFIC SYNTHESIS OF EPOXIDES
Castedo, Luis,Castro, Jose L.,Riguera, Ricardo
, p. 1205 - 1208 (2007/10/02)
Optically pure β-ethanolamines were converted into epoxides in good yield and with high e.e. (>= 95percent) by reaction with dichlorocarbene.By this method α-aminoacids were successfully converted into synthetically useful epoxides.