2021-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2021-19-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,2 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2021-19:
(6*2)+(5*0)+(4*2)+(3*1)+(2*1)+(1*9)=34
34 % 10 = 4
So 2021-19-4 is a valid CAS Registry Number.
InChI:InChI=1/C12H17NO2/c1-2-3-8-13-11(14)9-6-4-5-7-10(9)12(13)15/h4-5,9-10H,2-3,6-8H2,1H3
2021-19-4Relevant articles and documents
PROPELLANES-LXXIII CYCLIC OLIGOMERS FROM A PROPELLENE-bis-IMIDE AND 1,ω-DIBROMOALKANES
Ashkenazi, P.,Tatarsky, D.,Ginsburg, D.
, p. 3325 - 3328 (2007/10/02)
Cyclic oligomers were made from the title reactants.These were sometimes accompanied by linear oligomers.
