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99865-93-7

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99865-93-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99865-93-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,6 and 5 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99865-93:
(7*9)+(6*9)+(5*8)+(4*6)+(3*5)+(2*9)+(1*3)=217
217 % 10 = 7
So 99865-93-7 is a valid CAS Registry Number.

99865-93-7Downstream Products

99865-93-7Relevant articles and documents

Vilsmeier Formylation and Glyoxylation Reactions of Nucleophilic Aromatic Compounds Using Pyrophosphoryl Chloride

Downie, Ian M.,Earle, Martyn J.,Heaney, Harry,Shuhaibar, Khamis F.

, p. 4015 - 4034 (1993)

Reactions of N,N-dimethylformamide and N-methylformanilide with pyrophosphoryl chloride lead to the formation of reagents that undergo reactions with a wide range of nucleophilic aromatic substrates, including indoles, pyrroles, thiophenes, furans, and methoxy-substituted carbocyclic arenes to afford, after hydrolysis of the initial products, good to excellent yields of the expected aldehydes; reactions with methyl oxamates allow the preparation of methyl arylglyoxylates. Key words: pyrophosphoryl chloride, N,N-dimethylformamide, methoxyarene, heterocyle, formylation

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