109975-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109975-91-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,7 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 109975-91:
(8*1)+(7*0)+(6*9)+(5*9)+(4*7)+(3*5)+(2*9)+(1*1)=169
169 % 10 = 9
So 109975-91-9 is a valid CAS Registry Number.
109975-91-9Relevant academic research and scientific papers
β-Lactam Annulation Using (Phenylthio)nitromethane
Barrett, Anthony G. M.,Graboski, Gregory G.,Sabat, Michal,Taylor, Sven J.
, p. 4693 - 4702 (2007/10/02)
2--1-azabicyclooctan-8-one (8a), 2--1-azabicyclo(3.2.0>heptan-7-one (10a), 2--4-oxa-1-azabicycloheptan-7-one (19a), 3,3-dimethyl-2--4-oxa-1-azabicyclo3.
