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38040-20-9

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38040-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 38040-20-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,8,0,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 38040-20:
(7*3)+(6*8)+(5*0)+(4*4)+(3*0)+(2*2)+(1*0)=89
89 % 10 = 9
So 38040-20-9 is a valid CAS Registry Number.

38040-20-9Relevant articles and documents

Process for the production of nitro derivatives of aromatic compounds

-

, (2008/06/13)

Nitroderivates of aromatic compounds which are difficult to nitrate, can readily be obtained by nitration providing that the aromatic compound is treated with nitric acid or another nitrating agent in the presence of aliphatic or cycloaliphatic hydrocarbons monosubstituted or polysubstituted by halogen, the nitro group or an alkyl sulphonyl group, and the nitro derivative formed subsequently isolated.

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