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50637-11-1

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50637-11-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 50637-11-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,0,6,3 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 50637-11:
(7*5)+(6*0)+(5*6)+(4*3)+(3*7)+(2*1)+(1*1)=101
101 % 10 = 1
So 50637-11-1 is a valid CAS Registry Number.

50637-11-1Relevant articles and documents

Preparation of 5-(2-Benzoyloxymethyl-4-methoxy)phenyl-2(5H)-furanone

Bhat, K. S.,Rao, A. S.

, p. 360 - 364 (2007/10/02)

5-Phenyl-2(5H)-furanone (11), 5-(2-methyl-4-methoxy)phenyl-2(5H)-furanone (16) and 5-(2-benzoyloxymethyl-4-methoxy)phenyl-2(5H)-furanone (6) have been prepared from γ-phenyl-γ-butyrolactone (9), γ-(2-methyl-4-methoxy)phenyl-γ-butyrolactone (14) and γ-(2-benzoyloxymethyl-4-methoxy)phenyl-γ-butyrolactone (4) respectively employing the method of Sharpless. 11 has been converted into 4-oxo-4-phenylbutanoic acid (7) on treatment with alkali.During the Wolff-Kishner reduction of 4-oxo-4-(2-methyl-2-methoxyphenyl)butanoic acid (12) the demethylated product 4-(2-methyl-4-hydroxy)phenylbutanoic acid (19) has also been obtained.

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