1257333-47-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257333-47-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,3,3 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1257333-47:
(9*1)+(8*2)+(7*5)+(6*7)+(5*3)+(4*3)+(3*3)+(2*4)+(1*7)=153
153 % 10 = 3
So 1257333-47-3 is a valid CAS Registry Number.
1257333-47-3Relevant articles and documents
Bimetallic complexes of porphyrinphenanthroline: Preparation and catalytic activities
Lin, Rong-Shin,Li, Meng-Ru,Liu, Yi-Hong,Peng, Shei-Ming,Liu, Shiuh-Tzung
, p. 3523 - 3529 (2011/02/16)
Condensation of tetraphenylporphyrin-2,3-dione with 1,10-phenanthroline-5, 6-diamine provided porphyrinphenanthroline (2) as the desired ligand. Metallation of the porphyrinic site of 2 with CoCl2, NiCl 2, ZnCl2 and CuCls