1257241-84-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257241-84-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,2,4 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1257241-84:
(9*1)+(8*2)+(7*5)+(6*7)+(5*2)+(4*4)+(3*1)+(2*8)+(1*4)=151
151 % 10 = 1
So 1257241-84-1 is a valid CAS Registry Number.
1257241-84-1Relevant articles and documents
Ruthenium-catalyzed efficient routes to oxindole derivatives
Tabatabaeian, Khalil,Mamaghani, Manouchehr,Mahmoodi, Nosratollah,Khorshidi, Alireza
, p. 1213 - 1217 (2009)
Ruthenium-catalyzed preparation of oxindoles from one-pot trimerization of indoles under oxidative conditions and from electrophilic substitution reaction of indoles with isatins or isatin-derived imines under very mild reaction conditions is reported.
