8-broMo-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione

8-broMo-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione - Names and Identifiers

Name	8-bromo-1H-3,1-benzoxazine-2,4-dione
Synonyms	8-Bromoisatoic anhydride 3-Bromoisatoic anhydride 3-BROMOISATOIC ANHYDRIDE 8-bromo-1H-3,1-benzoxazine-2,4-dione 8-Bromo-2H-3,1-benzoxazine-2,4(1H)-dione 8-BROMO-1H-BENZO[D][1,3]OXAZINE-2,4-DIONE 2H-3,1-Benzoxazine-2,4(1H)-dione, 8-bromo- 8-broMo-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione 8-Bromo-2H-3,1-benzoxazine-2,4(1H)-dione, 8-Bromo-1H-benzo[d][1,3]oxazine-2,4-dione
CAS	331646-98-1
EINECS	675-968-6
InChI	InChI=1/C8H4BrNO3/c9-5-3-1-2-4-6(5)10-8(12)13-7(4)11/h1-3H,(H,10,12)

8-broMo-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione - Physico-chemical Properties

Molecular Formula	C8H4BrNO3
Molar Mass	242.03
Density	1.826g/cm³
Storage Condition	under inert gas (nitrogen or Argon) at 2-8°C
Refractive Index	1.622

8-broMo-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione - Introduction

8-bromo-1H-3,1-benzoxazine-2,4-dione is a dark purple crystal containing a bromine atom with the chemical formula C8H3BrN2O4. The following is a description of some properties, uses, methods and safety information about 8-bromo-1H-3,1-benzoxazine-2,4-dione:

Nature:
-Appearance: 8-bromo-1H-3,1-benzoxazine-2,4-dione appears as dark purple crystals.
-Solubility: In common solvents, such as ethanol, dimethylformamide (DMF) and dichloromethane, it can be dissolved to a limited extent.
-Stability: 8-bromo-1H-3,1-benzoxazine-2,4-dione is relatively unstable under light and is prone to decomposition.

Use:
-Pigment: 8-bromo-1H-3,1-benzoxazine-2,4-dione is an organic pigment that can be used in fabrics, paints, plastics and inks to bring dark purple colors to products.

Method:
- 8-bromo-1H-3,1-benzoxazine-2,4-dione can be prepared by replacing the hydrogen atom of 1,2-naphthoquinone. First, under appropriate reaction conditions, 1,2-naphthoquinone is reacted with cuprous bromide (CuBr) to produce 8-bromo-1, 2-naphthoquinone. Then, 8-bromo-1, 2-naphthoquinone is reacted with thionyl tert-butyrate (TBTS) or other related reagents to produce 8-bromo-1H-3,1-benzoxazine-2,4-dione.

Safety Information:
- 8-bromo-1H-3,1-benzoxazine-2,4-dione is an organic compound and is a toxic substance. During handling and storage, appropriate safety measures should be taken to avoid inhalation, skin invasion or entry into the digestive tract.
-Wear appropriate personal protective equipment, such as lab gloves, goggles and protective clothing.
-Avoid contact with reactive substances such as oxidants and strong acids.
-In case of accidental contact with skin or eyes, rinse immediately with plenty of water and seek medical help.

Last Update：2024-04-10 22:29:15