121587-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121587-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,8 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121587-91:
(8*1)+(7*2)+(6*1)+(5*5)+(4*8)+(3*7)+(2*9)+(1*1)=125
125 % 10 = 5
So 121587-91-5 is a valid CAS Registry Number.
121587-91-5Relevant articles and documents
MANGANESE(III) MEDIATED RADICAL CYCLIZATION. II. THE SYNTHESIS OF DIHYDRO-5-ARYL-3,4-DI(CARBOXYMETHYL)-2(3H)-FURANONES BY SUBSTRATE SELECTIVE OXIDATION
Peterson, John R.,Do, Hoang D.,Surjasasmita, Irawan B.
, p. 1985 - 1994 (2007/10/02)
Substrate selective oxidation with manganese(III) acetate effected γ-lactone annulation of methyl malonate onto electron-rich methyl cinnamat in good yield.