2,3-二氢-2,2-二甲基-6-硝基-4H-1-苯并吡喃-4-酮

2,3-二氢-2,2-二甲基-6-硝基-4H-1-苯并吡喃-4-酮 - Names and Identifiers

Name	2,2-DIMETHYL-6-NITRO-CHROMAN-4-ONE
Synonyms	2,2-DIMETHYL-6-NITRO-CHROMAN-4-ONE 2,2-Dimethyl-6-nitro-2,3-dihydro-4H-chromen-4-one 2,3-Dihydro-2,2-dimethyl-6-nitro-4H-1-benzopyran-4-one 2,2-diMethyl-6-nitro-3,4-dihydro-2H-1-benzopyran-4-one 4H-1-Benzopyran-4-one, 2,3-dihydro-2,2-dimethyl-6-nitro-
CAS	111478-49-0
InChI	InChI=1/C11H11NO4/c1-11(2)6-9(13)8-5-7(12(14)15)3-4-10(8)16-11/h3-5H,6H2,1-2H3

2,3-二氢-2,2-二甲基-6-硝基-4H-1-苯并吡喃-4-酮 - Physico-chemical Properties

Molecular Formula	C11H11NO4
Molar Mass	221.21
Density	1.270±0.06 g/cm3(Predicted)
Melting Point	373℃
Boling Point	365.9±42.0 °C(Predicted)
Flash Point	171.1°C
Vapor Presure	1.52E-05mmHg at 25°C
Storage Condition	2-8°C
Refractive Index	1.556

2,3-二氢-2,2-二甲基-6-硝基-4H-1-苯并吡喃-4-酮 - Introduction

properties: DNPH molecular formula is C12H13NO5, relative molecular mass is 251.24. It is not readily soluble in water and is soluble in organic solvents such as ethanol and chloroform. DNPH has strong oxidation and toxicity.

Use: DNPH can be used as a chemical intermediate and an oxidant in organic synthesis. It can also be used for derivatization reagents in analytical chemistry, mainly for the detection of volatile organic compounds (VOCs) in air and water. DNPH can react with a variety of VOCs to form derivatives, which is convenient for subsequent analysis and measurement.

Preparation method: DNPH can be prepared by nitro reaction. First, 2,2-dimethyl-6-methoxy-dimethylbenzopyran-4-one is reacted with nitric acid and then treated with base to give 2,2-dimethyl-6-nitro-dimethylmethoxybenzopyran-4-one.

Safety Information: DNPH is irritating to the eyes, skin and respiratory tract. Avoid inhalation, contact with skin, or entry into eyes during operation. In case of accidental contact, rinse immediately with plenty of water. In addition, DNPH also has certain carcinogenicity and teratogenicity, so it is necessary to comply with relevant safety procedures when using and storing, and ensure good ventilation conditions. Local regulations should be followed when disposing of waste.

Last Update：2024-04-10 22:29:15