191936-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191936-85-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,9,3 and 6 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 191936-85:
(8*1)+(7*9)+(6*1)+(5*9)+(4*3)+(3*6)+(2*8)+(1*5)=173
173 % 10 = 3
So 191936-85-3 is a valid CAS Registry Number.
191936-85-3Relevant academic research and scientific papers
A new approach to porphobilinogen and its analogs
De Leon, Christine Y.,Ganem, Bruce
, p. 7731 - 7752 (2007/10/03)
The van Leusen pyrrole synthesis was used to assemble three potential precursors of porphobilinogen, one of which was converted to the natural product using a new method for the direct alkylation of β-hydroxymethylpyrroles.
