74235-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74235-20-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,2,3 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 74235-20:
(7*7)+(6*4)+(5*2)+(4*3)+(3*5)+(2*2)+(1*0)=114
114 % 10 = 4
So 74235-20-4 is a valid CAS Registry Number.
74235-20-4Relevant articles and documents
New Peptide Antibiotics, Trichopolyns I and II, from Trichoderma polysporum
Fujita, Tetsuro,Takaishi, Yoshihisa,Okamura, Akio,Fujita, Eiichi,Fuji, Kaoru,et al.
, p. 585 - 587 (2007/10/02)
The peptide antibiotics trichopolyn I and II produced by Trichoderma polysporum were shown by chemical degradation and spectral analysis to have the structures (14) and (15) respectively.
