2,5-Dichlorophenylhydrazine
2,5-Dichlorophenylhydrazine (CAS 305-15-7) is an organic compound with the molecular formula C6H6Cl2N2. It functions as a valuable building block in organic synthesis, particularly within the realm of chemical research and development. This hydrazine derivative is noted for its role in preparing specific hydrazone compounds. Supplied by Tech Serve Solutions, it is available at 98% purity for laboratory and industrial applications.
- Synonyms
- Cl2C6H3NHNH2

Organic Synthesis Intermediate
2,5-Dichlorophenylhydrazine serves as a key intermediate in the synthesis of complex organic molecules. Its reactive hydrazine group allows for various chemical transformations, making it useful in multi-step synthetic routes.
Preparation of Hydrazones
This compound is specifically utilised in the preparation of hydrazones, which are important functional groups in medicinal chemistry and materials science. An example includes its use in the preparation of D-erythrose 2,5-dichlorophenylhydrazone.
Research and Development
As a fine chemical, 2,5-Dichlorophenylhydrazine is employed in academic and industrial research laboratories for exploring new chemical reactions and developing novel compounds.
| Molecular weight | 177.03 |
|---|---|
| Linear formula | Cl2C6H3NHNH2 |
| Assay | 98% |
| Application | 2,5-Dichlorophenylhydrazine was used in the preparation of D-erythrose 2,5-dichlorophenylhydrazon1. |
| Melting point | 102-103 °C(lit.) |

Hazard statements
- H301Toxic if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P301IF SWALLOWED
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 25-36 |
| Safety statements (S) | 26-36/37-45 |
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 2,5-Dichlorophenylhydrazine used for?
+
2,5-Dichlorophenylhydrazine is used as an intermediate in organic synthesis, notably for the preparation of hydrazones and in research and development settings.
What is the CAS number and molecular formula for 2,5-Dichlorophenylhydrazine?
+
The CAS number is 305-15-7 and the molecular formula is C6H6Cl2N2. Its linear formula is Cl2C6H3NHNH2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 2,5-Dichlorophenylhydrazine with an assay of 98%. This is a technical/research grade material, and TSS does not represent it as USP, BP, or EP grade.
How should 2,5-Dichlorophenylhydrazine be handled safely?
+
2,5-Dichlorophenylhydrazine is classified as toxic if swallowed and causes serious eye irritation. Handle with appropriate personal protective equipment including eyeshields, face shields, gloves, and a P2 respirator. Ensure adequate ventilation and follow precautionary statements P301 + P310 and P305 + P351 + P338.
Is 2,5-Dichlorophenylhydrazine a controlled substance?
+
The provided data does not indicate that 2,5-Dichlorophenylhydrazine is a controlled substance.
How is 2,5-Dichlorophenylhydrazine packed and shipped?
+
2,5-Dichlorophenylhydrazine is shipped according to UN 2811, hazard class 6.1, packing group III regulations. TSS ensures compliant packaging and international export procedures.
How can I request a sample or quote for 2,5-Dichlorophenylhydrazine?
+
To request a sample or quote for 2,5-Dichlorophenylhydrazine, please contact the Tech Serve Solutions sales department through our website or direct contact information.
▶ 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