97989-92-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97989-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,9,8 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 97989-92:
(7*9)+(6*7)+(5*9)+(4*8)+(3*9)+(2*9)+(1*2)=229
229 % 10 = 9
So 97989-92-9 is a valid CAS Registry Number.
97989-92-9Relevant academic research and scientific papers
CHIRAL SYNTHESIS OF THE DEF-RING SYSTEM OF NOGALAMYCIN
Kawasaki, Motoji,Matsuda, Fuyuhiko,Terashima, Shiro
, p. 2693 - 2696 (2007/10/02)
The DEF-ring system of nogalamycin (1), a potent antitumor antibiotic of the anthracycline family, was stereoselectively synthesized in an optically active form starting from readily available D-arabinose.