128374-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128374-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,7 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128374-09:
(8*1)+(7*2)+(6*8)+(5*3)+(4*7)+(3*4)+(2*0)+(1*9)=134
134 % 10 = 4
So 128374-09-4 is a valid CAS Registry Number.
128374-09-4Relevant academic research and scientific papers
Manka,Lawrence
, p. 6989 - 6992 (1989)
The condensation of dipyrrylmethane with a variety of aromatic aldehydes furnishes, upon oxidation with chloranil, 5,15-diarylporphyrins in high yield (73-92%).
