204202-35-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204202-35-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,2,0 and 2 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 204202-35:
(8*2)+(7*0)+(6*4)+(5*2)+(4*0)+(3*2)+(2*3)+(1*5)=67
67 % 10 = 7
So 204202-35-7 is a valid CAS Registry Number.
204202-35-7Relevant academic research and scientific papers
Studies on the preparation of protomycinolide IV: Enantioselective synthesis of the C3-C9 segment
Wasicak, James T.,Donaldson, William A.
, p. 133 - 140 (2007/10/03)
The C3-C9 segment, (-)-16, of the polyene macrolide antibiotic protomycinolide IV (1a) was prepared in optically pure form from commercially available methyl (S)-2-methyl-3-hydroxypropionate in 12 steps giving 17% yield.
