1,3-Dinitrobenzene
1,3-Dinitrobenzene (CAS 99-65-0), with the linear formula C6H4(NO2)2 and a molecular weight of 168.11 g/mol, is a pale yellow crystalline solid. It is a key intermediate in organic synthesis, primarily utilised in the production of dyes, explosives, and other speciality chemicals. Its nitro groups render it a valuable building block for further chemical transformations. TSS supplies this compound with an assay of 97% on an anhydrous basis.
- Synonyms
- 1,3-Dinitrobenzenem-DinitrobenzeneBenzene, 1,3-dinitro-

Dye Synthesis Intermediate
1,3-Dinitrobenzene serves as a crucial precursor in the synthesis of various azo dyes and other colourants. Its reactive nitro groups allow for straightforward conversion into amine functionalities, essential for chromophore development.
Explosives Manufacturing
Due to its nitro functionalities, 1,3-Dinitrobenzene finds application in the formulation of certain explosive compositions. It contributes to the energetic properties required for these materials.
Organic Synthesis Building Block
As a disubstituted aromatic compound, 1,3-Dinitrobenzene is a versatile building block in organic chemistry. It is employed in the synthesis of pharmaceuticals, agrochemicals, and other complex organic molecules.
| Molecular weight | 168.11 |
|---|---|
| Linear formula | C6H4(NO2)2 |
| Assay | 97% anhydrous basis |
| Boiling point | 297 °C(lit.) |
| Density | 1.368 g/mL at 25 °C(lit.) |
| Impurities tested | ≤10.0% H2O |
| Melting point | 84-86 °C(lit.) |



Hazard statements
- H300Fatal if swallowed
- H310Fatal in contact with skin
- H330Fatal if inhaled
- H373May cause damage to organs through prolonged exposure
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P264Wash thoroughly after handling
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 150 °C / 302 °F |
| Transport (UN / ADR) | UN 3443 6.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T+,N |
| Risk statements (R) | 26/27/28-33-50/53 |
| Safety statements (S) | 28-36/37-45-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 1,3-Dinitrobenzene used for?
+
1,3-Dinitrobenzene is primarily used as an intermediate in the synthesis of dyes, explosives, and other speciality organic chemicals. It acts as a versatile building block in various chemical transformations.
What is the CAS number and chemical formula for 1,3-Dinitrobenzene?
+
The CAS number for 1,3-Dinitrobenzene is 99-65-0, and its linear formula is C6H4(NO2)2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 1,3-Dinitrobenzene with an assay of 97% on an anhydrous basis. This product is not represented as USP, BP, or EP grade.
How should 1,3-Dinitrobenzene be handled safely?
+
1,3-Dinitrobenzene is acutely toxic if swallowed, in contact with skin, or if inhaled (H300-H310-H330) and may cause damage to organs through prolonged exposure (H373). It is also very toxic to aquatic life with long-lasting effects (H410). Appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (type N100 or P3), is essential. Handle in a well-ventilated area and avoid release to the environment.
How is 1,3-Dinitrobenzene packed and exported?
+
1,3-Dinitrobenzene is packed in accordance with international transport regulations, classified as UN 3443, Hazard Class 6.1, Packing Group II. TSS is experienced in exporting fine chemicals globally.
How can I request a quote or sample for 1,3-Dinitrobenzene?
+
To request a quote or a sample of 1,3-Dinitrobenzene, please contact the TSS sales team through our website or by phone, providing your specific requirements.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis