123279-54-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123279-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,2,7 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 123279-54:
(8*1)+(7*2)+(6*3)+(5*2)+(4*7)+(3*9)+(2*5)+(1*4)=119
119 % 10 = 9
So 123279-54-9 is a valid CAS Registry Number.
InChI:InChI=1/C36H36F2N4O4/c1-8-22-18(2)26-14-27-19(3)23(9-11-35(43)45-6)31(40-27)17-32-24(10-12-36(44)46-7)20(4)28(41-32)16-33-25(13-34(37)38)21(5)29(42-33)15-30(22)39-26/h8,13-17,39,42H,1,9-12H2,2-7H3/b26-14-,27-14-,28-16-,29-15-,30-15-,31-17-,32-17-,33-16-
123279-54-9Relevant articles and documents
Synthesis of Fluorine Analogues of Protoporphyrin
Ando, Akira,Shinada, Tetsuro,Kinoshita, Shinji,Arimura, Noriko,Nagai, Takabumi,et al.
, p. 293 - 298 (2007/10/02)
With intention of obtaining a porphyrin derivative useful for diagnosis and therapy of cancer, fluorine analogues of protoporphyrin, in which the vinyl group(s) are replaced by difluorovinyl group(s), were synthesized by the reaction of the formylporphyrins with sodium chlorodifluoroacetate in the presence of triphenylphosphine.