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854624-46-7

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854624-46-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 854624-46-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,4,6,2 and 4 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 854624-46:
(8*8)+(7*5)+(6*4)+(5*6)+(4*2)+(3*4)+(2*4)+(1*6)=187
187 % 10 = 7
So 854624-46-7 is a valid CAS Registry Number.

854624-46-7Relevant articles and documents

Mono-nitration of aromatic compounds via their nitric acid salts

Zhang, Pingsheng,Cedilote, Miall,Cleary, Thomas P.,Pierce, Michael E.

, p. 8659 - 8664 (2008/03/30)

Aromatic compounds bearing a basic nitrogen atom can be converted to the corresponding nitric acid salts. Mono-nitration of the compounds can be carried out by adding a dichloromethane solution of the salts to sulfuric acid, or by adding acetyl chloride (or trifluoroacetic anhydride) to a dichloromethane solution of the salts. This protocol provides, among other benefits, the most convenient and reliable way for the prevention of over-/under-nitration and is especially suitable for scale-up.

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