136001-23-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136001-23-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,0,0 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136001-23:
(8*1)+(7*3)+(6*6)+(5*0)+(4*0)+(3*1)+(2*2)+(1*3)=75
75 % 10 = 5
So 136001-23-5 is a valid CAS Registry Number.
136001-23-5Relevant articles and documents
Synthesis and DNA-binding studies of new cationic guanidine and betaineamide tetraphenylphorphyrins
Salehi,Mei,Bruice
, p. 3453 - 3456 (1991)
Cationic water-soluble tetraphenylporphyrins with guanidine or betaine groups on the phenyl rings are prepared by the coupling reaction of hydrogen cyanamide and N-chlorobetainylchloride, respectively, with tetraaminophenylporphyrins and the preliminary r
