184699-65-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 184699-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,4,6,9 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 184699-65:
(8*1)+(7*8)+(6*4)+(5*6)+(4*9)+(3*9)+(2*6)+(1*5)=198
198 % 10 = 8
So 184699-65-8 is a valid CAS Registry Number.
184699-65-8Relevant articles and documents
Synthesis and spectra of meso-dialkyl-β-octamethylporphyrins
Zdanovich,Mamardashvili,Golubchikov
, p. 756 - 761 (2007/10/03)
Condensation of bis(3,4-dimethyl-2-pyrrolyl)methane or bis(5-carboxy-3,4-dimethyl-2-pyrrolyl)methane with unbranched aldehydes CnH2n+1CHO (n= 1-7) results in formation of 5,15-dialkyl-2,3,7,8,12,13,17,18-octamethylporphyrins. Zinc complexes of the porphyrins are obtained.
