690223-82-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690223-82-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,2,2 and 3 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 690223-82:
(8*6)+(7*9)+(6*0)+(5*2)+(4*2)+(3*3)+(2*8)+(1*2)=156
156 % 10 = 6
So 690223-82-6 is a valid CAS Registry Number.
690223-82-6Relevant articles and documents
Syntheses of two cytotoxic polyunsaturated pyrrole metabolites of the marine sponge Mycale micracanthoxea
Hansen, Trond Vidar,Skatteb?l, Lars
, p. 2809 - 2811 (2004)
Starting from eicosapentaenoic acid (EPA) the marine, naturally occurring, pyrrole derivatives, mycalazol 5 and mycalazal 2 have been synthesized. The Stille coupling reaction is a key step in the syntheses.