220336-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220336-25-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,3 and 6 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220336-25:
(8*2)+(7*2)+(6*0)+(5*3)+(4*3)+(3*6)+(2*2)+(1*5)=84
84 % 10 = 4
So 220336-25-4 is a valid CAS Registry Number.
220336-25-4Relevant articles and documents
Synthesis and reactivity of porphyrin complexes of group IV p-elements
Molodkina,Lomova,Mozhzhukhina
, p. 968 - 973 (2002)
The composition of products and the general regularities of complex formation of meso-tetraphenylporphine with Si(IV), Ge(IV), Sn(II), and Pb(II), as well as the kinetics and mechanism of dissociation of the resulting complexes under the action of proton-
