64555-54-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64555-54-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,5,5 and 5 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 64555-54:
(7*6)+(6*4)+(5*5)+(4*5)+(3*5)+(2*5)+(1*4)=140
140 % 10 = 0
So 64555-54-0 is a valid CAS Registry Number.
64555-54-0Relevant articles and documents
A novel synthesis of 4-hydroxy-3-phenylcoumarins by titanium(III)-mediated reductive C-C bond formation
Clerici,Porta
, p. 99 - 102 (1993)
4-Hydroxy-3-phenylcoumarins (4-hydroxy-3-phenyl-2H-1-benzopyran-2-ones) were readily synthesized in two steps by the titanium(III)-mediated reaction of methyl benzoylformate and substituted salicylaldehydes followed by lactonization, under acidic conditio