52443-97-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52443-97-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,4,4 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 52443-97:
(7*5)+(6*2)+(5*4)+(4*4)+(3*3)+(2*9)+(1*7)=117
117 % 10 = 7
So 52443-97-7 is a valid CAS Registry Number.
52443-97-7Relevant articles and documents
Fast and efficient synthesis of 4-arylidene-3-phenylisoxazol-5-ones
Mirzazadeh, Maryam,Mahdavinia, Gholam Hossein
experimental part, p. 425 - 429 (2012/05/20)
A convenient and easy synthesis of 4-arylidene-3-phenylisoxazol-5-ones by the three-component reaction of hydroxylamine, ethyl benzoylacetate and aromatic aldehydes in the presence of DABCO in refluxing ethanol is reported.