Hydrazine monohydrobromide
Hydrazine monohydrobromide (CAS: 13775-80-9), with the chemical formula H₂NNH₂ · HBr and a molecular weight of 112.96 g/mol, is a crucial chemical intermediate. It serves as a versatile building block in organic synthesis, particularly in the preparation of heterocyclic compounds and other nitrogen-containing molecules. Its reactivity makes it valuable in various chemical research and development applications.

Organic Synthesis
Hydrazine monohydrobromide is widely employed as a reagent in organic synthesis. It is instrumental in the formation of carbon-nitrogen bonds and is a precursor for various heterocyclic structures, including pyrazoles and other nitrogen-containing ring systems.
Chemical Research
This compound is frequently utilised in academic and industrial research laboratories for the development of novel chemical entities and synthetic methodologies. Its specific reactivity profile allows for targeted transformations in complex molecular architectures.
Pharmaceutical Intermediate
As a key building block, hydrazine monohydrobromide plays a role in the synthesis pathways of certain pharmaceutical agents. Its structure contributes to the development of molecules with potential therapeutic applications.
| Molecular weight | 112.96 |
|---|---|
| Linear formula | H2NNH2 · HBr |
| Assay | ≥98% |
| Melting point | 87-92 °C(lit.) |



Hazard statements
- H301Toxic if swallowed
- H311Toxic in contact with skin
- H317May cause an allergic skin reaction
- H331Toxic if inhaled
- H350May cause cancer
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P201Obtain special instructions before use
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P311Call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P2 (EN 143) respirator cartridges, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3262 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T,N |
| Risk statements (R) | 45-23/24/25-43-50/53 |
| Safety statements (S) | 53-45-60-61 |
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 Hydrazine monohydrobromide used for?
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Hydrazine monohydrobromide is primarily used as a building block in organic synthesis for creating nitrogen-containing compounds and heterocyclic structures, and in chemical research and development.
What is the CAS number and chemical formula for Hydrazine monohydrobromide?
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The CAS number is 13775-80-9 and the chemical formula is H₂NNH₂ · HBr.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Hydrazine monohydrobromide with an assay of ≥98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Hydrazine monohydrobromide be handled?
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Hydrazine monohydrobromide is a toxic substance that can cause serious health effects. Handling requires appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection. It is classified with hazard statements H301, H311, H317, H331, H350, and H410, indicating acute toxicity, skin sensitization, carcinogenicity, and environmental hazard.
Is Hydrazine monohydrobromide a controlled substance?
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Based on the provided data, Hydrazine monohydrobromide is classified as toxic and potentially carcinogenic, but there is no explicit indication of it being a scheduled or controlled substance under standard chemical regulations.
How is Hydrazine monohydrobromide packed and shipped?
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Hydrazine monohydrobromide is shipped under UN 3262 classification, indicating it is a corrosive solid, acidic, inorganic, n.o.s. (Hydrazine monohydrobromide). Shipments adhere to strict regulations for hazardous materials.
How can I request a quote or sample?
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To request a quote or sample of Hydrazine monohydrobromide, please contact the Tech Serve Solutions sales department via our website or direct inquiry channels.
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