89102-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89102-19-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,0 and 2 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89102-19:
(7*8)+(6*9)+(5*1)+(4*0)+(3*2)+(2*1)+(1*9)=132
132 % 10 = 2
So 89102-19-2 is a valid CAS Registry Number.
89102-19-2Relevant academic research and scientific papers
A simple synthesis of (±)-1-carbacephem derivatives
Hatanaka,Ishimaru
, p. 4837 - 4838 (2007/10/02)
The Dieckmann condensation of the phenylthioester of 4-(1-t-butoxycarbonylmethyl-3-phenoxyacetamido-azetidin-2-one-4-yl)butylic acid affords a simple route to 3-substituted-8-oxo-7-phenoxyacetamido-1-azabicyclo[4,2,0]oct-2-ene-2-carb oxylic acids.
