7399-73-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7399-73-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,9 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7399-73:
(6*7)+(5*3)+(4*9)+(3*9)+(2*7)+(1*3)=137
137 % 10 = 7
So 7399-73-7 is a valid CAS Registry Number.
InChI:InChI=1/C16H14N2O/c19-16(13-9-5-2-6-10-13)15-14(11-17-18-15)12-7-3-1-4-8-12/h1-10,14,17H,11H2
7399-73-7Relevant articles and documents
SYNTHESIS OF 3-BENZOYL-4-PHENYL-2-PYRAZOLINES BY THE REACTIONS OF CHALCONES WITH DIAZOMETHANE
Toekes, A. L.,Szoelloesy, A.,Toth, G.,Levai, A.
, p. 335 - 342 (2007/10/02)
3-Benzoyl-4-phenyl-2-pyrazolines (IIIa-k) have been synthesized by the reactions of chalcones (1a-k) with diazomethane.The structures of the compounds prepared have been elucidated by means of UV, IR, (1)H- and (13)C-NMR spectroscopic methods.The conforma