1193089-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1193089-22-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,3,0,8 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1193089-22:
(9*1)+(8*1)+(7*9)+(6*3)+(5*0)+(4*8)+(3*9)+(2*2)+(1*2)=163
163 % 10 = 3
So 1193089-22-3 is a valid CAS Registry Number.
1193089-22-3Relevant academic research and scientific papers
Novel chromeno[2,3-b]pyridines from Basic Rearrangement of 4-Oxo-chromene-3-carbonitrile
Ibrahim, Magdy A.
experimental part, p. 3527 - 3545 (2009/12/08)
A new series of 2,3-disubstituted-5-oxochromeno[2,3-b]pyridine derivatives has been obtained throughout a 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-catalyzed reaction of 4-oxo-4H-chromene-3-carbonitrile with various active methyl and methylene compounds. T
