135761-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135761-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,7,6 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 135761-80:
(8*1)+(7*3)+(6*5)+(5*7)+(4*6)+(3*1)+(2*8)+(1*0)=137
137 % 10 = 7
So 135761-80-7 is a valid CAS Registry Number.
135761-80-7Relevant articles and documents
SYNTHETIC STUDIES TOWARDS CYSTODYTIN A:THE PREPARATION OF NOVEL CYSTODYTIN CONGENERS
Ciufolini, Marco A.,Byrne, Norman E.
, p. 5559 - 5562 (2007/10/02)
A sequence involving a modified Knoevenagel-Stobbe pyridine synthesis, and an unusual intramolecular reaction between a quinone and an azide, permits expeditious assembly of the ring system of the cystodytin alkaloids.
