141397-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141397-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,3,9 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 141397-21:
(8*1)+(7*4)+(6*1)+(5*3)+(4*9)+(3*7)+(2*2)+(1*1)=119
119 % 10 = 9
So 141397-21-9 is a valid CAS Registry Number.
141397-21-9Relevant articles and documents
Cycloadditions of Nitrile Oxides to Itaconimides
Svetlik, Jan,Liptaj, Tibor,Hanus, Vladimir
, p. 591 - 594 (2007/10/02)
New spiro heterocycles, 1-oxa-2,7-diazaspironon-2-ene-6,8-diones 3-c and 8a, c were obtained in the reaction of itaconimides 1a-c with nitrile oxides 2 and 7. Key Words: 1,3-Dipolar cycloaddition / Nitrile oxides / Isoxazoles