3,5-Dinitro-4-hydroxybenzoic acid

3,5-Dinitro-4-hydroxybenzoic acid - Names and Identifiers

Name	3,5-Dinitro-4-hydroxybenzoic acid
Synonyms	AKOS BB-9288 4-Carboxy-2,5-dinitrophenol 3,5-dinitro-4-oxidobenzoate 4-Hydroxy-3,5-dinitrobenzoic acid 3,5-Dinitro-4-hydroxybenzoic acid 3,5-DINITRO-4-HYDROXYBENZOIC ACID 4-HYDROXY-3,5-DINITROBENZOIC ACID 3,5-Dinitro-4-hydroxybenzonic Acid 3,5-Dinitro-4-Hydroxy Benzoic Acid (4-Hydroxy-3,5-Dinitrobenzoic Acid)
CAS	1019-52-9
EINECS	213-814-8
InChI	InChI=1/C7H4N2O7/c10-6-4(8(13)14)1-3(7(11)12)2-5(6)9(15)16/h1-2,10H,(H,11,12)/p-2

3,5-Dinitro-4-hydroxybenzoic acid - Physico-chemical Properties

Molecular Formula	C7H4N2O7
Molar Mass	228.12
Density	1.7914 (rough estimate)
Melting Point	245°C (dec.)(lit.)
Boling Point	369.91°C (rough estimate)
Flash Point	155.7°C
Vapor Presure	1.76E-05mmHg at 25°C
pKa	2.02±0.10(Predicted)
Storage Condition	Room Temprature
Refractive Index	1.5300 (estimate)
MDL	MFCD00017000

3,5-Dinitro-4-hydroxybenzoic acid - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection
WGK Germany	3

3,5-Dinitro-4-hydroxybenzoic acid - Introduction

3,5-dinitro-4-hydroxybenzoic acid is an organic compound with the chemical formula C7H5N3O7. The following is a description of some of the properties, uses, methods of manufacture and safety information of this compound:

Nature:
-Appearance: 3,5-Dinitro-4-hydroxybenzoic acid is a yellow crystalline solid.
-Melting point: about 175-177°C.
-Solubility: Slightly soluble in water, soluble in organic solvents such as alcohol and ether.

Use:
-3,5-dinitro-4-hydroxybenzoic acid is an important organic synthesis intermediate, which is widely used in the fields of medicine, dyes and explosives.
-In the field of medicine, it can be used to synthesize antibiotics, anti-inflammatory drugs and anti-tumor drugs.
-In the field of dyes, it can be used as a synthetic raw material for dyes and pigments.
-In the field of explosives, it can be used to synthesize high explosives.

Preparation Method:
3,5-dinitro-4-hydroxybenzoic acid can be obtained by nitration of p-nitrobenzoic acid. The specific preparation method is as follows:
1. Dissolve nitrobenzoic acid in concentrated sulfuric acid.
2. At low temperature, add concentrated nitric acid slowly and stir the reaction mixture well.
3. The reaction mixture was cooled and diluted to obtain a solution containing the target product.
4. Purify the target product in the solution by crystallization to obtain a crystalline product of 3,5-dinitro-4-hydroxybenzoic acid.

Safety Information:
-3,5-dinitro-4-hydroxybenzoic acid is a toxic compound that is irritating and corrosive.
-May cause irritation and burns when in contact with skin, eyes or respiratory tract.
-Wear appropriate personal protective equipment such as lab gloves, goggles, and gas masks when using or preparing the compound.
-Waste should be disposed of properly and in compliance with local regulations.

Last Update：2024-04-09 02:00:40