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4997-82-4

C17H19NO4S is a chemical compound with the molecular formula indicating it contains 17 carbon atoms, 19 hydrogen atoms, 1 nitrogen atom, 4 oxygen atoms, and 1 sulfur atom. C17H19NO4S likely belongs to a class of organic molecules, possibly a pharmaceutical or a biologically active substance, given the presence of nitrogen and sulfur, which are common in amino acids, peptides, and other complex organic molecules. The specific structure and properties of C17H19NO4S would depend on the arrangement of these atoms and the types of chemical bonds they form. Without additional information, such as the compound's name or its structural formula, it's challenging to provide a more detailed summary of its characteristics or applications.

4997-82-4

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4997-82-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4997-82-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,9 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 4997-82:
(6*4)+(5*9)+(4*9)+(3*7)+(2*8)+(1*2)=144
144 % 10 = 4
So 4997-82-4 is a valid CAS Registry Number.

4997-82-4Relevant articles and documents

Halogenation of some alkyl-substituted 4-aroyloxyimino-and 4-arylsulfonyloxyimino-2,5-cyclohexadienones

Avdeenko,Zhukova,Konovalova

, p. 382 - 387 (2007/10/03)

The chlorination and bromination of 2,3-dimethyl-, 3-methyl-6-isopropyl-, and 2,6-diisopropyl-4-aroyl(or arylsulfonyl)oxyimino-2,5-cyclohexadienones follow the proposed rules of halogenation of 4-aroyl-(or arylsulfonyl)oxyimino-2,5-cyclohexadienones: the reaction occurs preferentially at the cis-C=C bond of the quinoid ring; simultaneous halogenation at both double bonds is not observed; halogen adds mainly across unsubstituted C=C bond; no halogenation occurs at the double bond already substituted by a halogen; bromination of the C=C bond with an alkyl substituent is more difficult than chlorination; the second halogen molecule adds only after regioselective dehydrohalogenation.

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