134395-03-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 134395-03-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,3,9 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 134395-03:
(8*1)+(7*3)+(6*4)+(5*3)+(4*9)+(3*5)+(2*0)+(1*3)=122
122 % 10 = 2
So 134395-03-2 is a valid CAS Registry Number.
134395-03-2Relevant articles and documents
Synthesis and study of 3-(triphenylphosphoranylidene)-2,3-dihydro-1H-indol-2-one
Lathourakis, George E.,Litinas, Konstantinos E.
, p. 491 - 493 (1996)
The reaction of isatin 1 (2,3-dihydroindole-2,3-dione) and triphenylphosphine 2 afforded the new title compound 6 and isoindigo 7 and not the earlier proposed indirubin 3. Wittig reactions of 6 with the benzaldehydes 8a-c gave the corresponding (Z-)- and