223390-04-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223390-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,3,9 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 223390-04:
(8*2)+(7*2)+(6*3)+(5*3)+(4*9)+(3*0)+(2*0)+(1*4)=103
103 % 10 = 3
So 223390-04-3 is a valid CAS Registry Number.
223390-04-3Relevant articles and documents
A 2,2′-azobenzene-substituted calix[4]-arene-crown-6
Thuery, Pierre,Nierlich, Martine,Saadioui, Mohamed,Asfari, Zouhair,Vicens, Jacques
, p. 443 - 445 (1999)
The calix[4]arene macrocycle, 25,27-dihydroxy-26,28-(O,O′-azobenzene)calix[4]arene-crown-6 [which crystallizes as an N,N-dimethylformamide solvate (C48H46-N2O8·C 3H7NO)], in the cone confor
