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94733-48-9

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94733-48-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 94733-48-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,4,7,3 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 94733-48:
(7*9)+(6*4)+(5*7)+(4*3)+(3*3)+(2*4)+(1*8)=159
159 % 10 = 9
So 94733-48-9 is a valid CAS Registry Number.

94733-48-9Relevant articles and documents

IMPROVED METHOD OF OBTAINING PIPERITONE

Bazyl'chik, V. V.,Overchuk, T. N.

, p. 292 - 295 (1992)

A new convenient variant of the reduction of thymol methyl ether by lithium and isopropanol in the presence of ethylenediamine at 80-85 deg C and a molar equivalent ratio of ether to alcohol to amine to metal of 1:(8-12):(2.5-3):(4-6) has been developed.The proposed method permits the yield of piperitone to be doubled in comparison with known methods.

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