90740-75-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90740-75-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,7,4 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 90740-75:
(7*9)+(6*0)+(5*7)+(4*4)+(3*0)+(2*7)+(1*5)=133
133 % 10 = 3
So 90740-75-3 is a valid CAS Registry Number.
90740-75-3Relevant articles and documents
DIASTEREOFACIAL SELECTIVITY IN INTRAMOLECULAR DIELS-ALDER REACTIONS OF CHIRAL TRIENE-N-ACYLOXAZOLIDONES
Evans, David A.,Chapman, Kevin T.,Bisaha, John
, p. 4071 - 4074 (2007/10/02)
Excellent diasterofacial selection has been observed in asymmetric Diels-Alder cycloadditions of E,E-triene-imides 3 and 6.