1-(4-Bromo-2-Methylphenyl)hydrazine, HCl

Modify Date: 2026-07-16 10:55:54

1-(4-Bromo-2-Methylphenyl)hydrazine, HCl Structure
1-(4-Bromo-2-Methylphenyl)hydrazine, HCl structure
Common Name 1-(4-Bromo-2-Methylphenyl)hydrazine, HCl
CAS Number 56056-25-8 Molecular Weight 201.06400
Density N/A Boiling Point N/A
Molecular Formula C7H9BrN2 Melting Point N/A
MSDS N/A Flash Point N/A

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name (4-bromo-2-methylphenyl)hydrazine
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Molecular Formula C7H9BrN2
Molecular Weight 201.06400
Exact Mass 199.99500
PSA 38.05000
LogP 2.81640
InChIKey VJTBVNWEWUHQOT-UHFFFAOYSA-N
SMILES Cc1cc(Br)ccc1NN

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Material Safety Data Sheet

Section1. Identification of the substance
Product Name: 1-(4-Bromo-2-methylphenyl)hydrazine, HCl
Synonyms:

Section2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

Section3. Composition/information on ingredients.
Ingredient name:1-(4-Bromo-2-methylphenyl)hydrazine, HCl
CAS number:56056-25-8

Section4. First aid measures
Skin contact:Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact:Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation:Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion:Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

Section5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

Section6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution:Wear approved mask/respirator
Hand precaution:Wear suitable gloves/gauntlets
Skin protection:Wear suitable protective clothing
Eye protection:Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

Section7. Handling and storage
Handling:This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

Section8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

Section9. Physical and chemical properties
Appearance:Not specified
Boiling point:No data
No data
Melting point:
Flash point:No data
Density:No data
Molecular formula:C7H9BrN2.ClH
Molecular weight:237.5

Section10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides, hydrogen chloride, hydrogen bromide.

Section11. Toxicological information
No data.

Section12. Ecological information
No data.

Section13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

Section14. Transportation information
Non-harzardous for air and ground transportation.

Section15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

HS Code 2928000090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~82%

1-(4-Bromo-2-Methylphenyl)hydrazine, HCl Structure

1-(4-Bromo-2-Me...

CAS#:56056-25-8

Learn More
Literature: BAYER HEALTHCARE AG Patent: WO2004/5253 A1, 2004 ; Location in patent: Page/Page column 39; 40 ; WO 2004/005253 A1

~50%

1-(4-Bromo-2-Methylphenyl)hydrazine, HCl Structure

1-(4-Bromo-2-Me...

CAS#:56056-25-8

Learn More
Literature: Freeman-Cook, Kevin D.; Amor, Paul; Bader, Scott; Buzon, Leanne M.; Coffey, Steven B.; Corbett, Jeffrey W.; Dirico, Kenneth J.; Doran, Shawn D.; Elliott, Richard L.; Esler, William; Guzman-Perez, Angel; Henegar, Kevin E.; Houser, Janet A.; Jones, Christopher S.; Limberakis, Chris; Loomis, Katherine; McPherson, Kirk; Murdande, Sharad; Nelson, Kendra L.; Phillion, Dennis; Pierce, Betsy S.; Song, Wei; Sugarman, Eliot; Tapley, Susan; Tu, Meihua; Zhao, Zhengrong Journal of Medicinal Chemistry, 2012 , vol. 55, # 2 p. 935 - 942

~%

1-(4-Bromo-2-Methylphenyl)hydrazine, HCl Structure

1-(4-Bromo-2-Me...

CAS#:56056-25-8

Learn More
Literature: Michaelis,L. Chemische Berichte, 1893 , vol. 26, p. 2192

~%

1-(4-Bromo-2-Methylphenyl)hydrazine, HCl Structure

1-(4-Bromo-2-Me...

CAS#:56056-25-8

Learn More
Literature: Michaelis,L. Chemische Berichte, 1893 , vol. 26, p. 2192

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2928000090
Summary 2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

2-Methyl-4-brom-phenylhydrazin
5-Brom-2-hydrazino-toluol
4-Brom-o-tolylhydrazin

 1-(4-Bromo-2-Methylphenyl)hydrazine, HCl | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the molecular formula of (4-bromo-2-methylphenyl)hydrazine?
A: Molecular formula of (4-bromo-2-methylphenyl)hydrazine is C7H9BrN2.
Q: What is the polar surface area (PSA) of (4-bromo-2-methylphenyl)hydrazine?
A: Polar surface area (PSA) of (4-bromo-2-methylphenyl)hydrazine is 38.05000.
Q: What is the molecular weight of (4-bromo-2-methylphenyl)hydrazine?
A: Molecular weight of (4-bromo-2-methylphenyl)hydrazine is 201.06400.
Q: What is the English name of (4-bromo-2-methylphenyl)hydrazine?
A: The English name of (4-bromo-2-methylphenyl)hydrazine is (4-bromo-2-methylphenyl)hydrazine.
Q: What is the SMILES notation of (4-bromo-2-methylphenyl)hydrazine?
A: SMILES notation of (4-bromo-2-methylphenyl)hydrazine is Cc1cc(Br)ccc1NN.
Q: What is the LogP of (4-bromo-2-methylphenyl)hydrazine?
A: LogP of (4-bromo-2-methylphenyl)hydrazine is 2.81640.
Q: What is the CAS number of (4-bromo-2-methylphenyl)hydrazine?
A: CAS number of (4-bromo-2-methylphenyl)hydrazine is 56056-25-8.
Q: What is the InChIKey of (4-bromo-2-methylphenyl)hydrazine?
A: InChIKey of (4-bromo-2-methylphenyl)hydrazine is VJTBVNWEWUHQOT-UHFFFAOYSA-N.
Q: What are the upstream materials of (4-bromo-2-methylphenyl)hydrazine?
A: Related upstream materials(CAS) of (4-bromo-2-methylphenyl)hydrazine: 80649-94-1;583-75-5;529-27-1;7647-01-0;7726-95-6.
Q: What are the downstream products of (4-bromo-2-methylphenyl)hydrazine?
A: Related downstream products(CAS) of (4-bromo-2-methylphenyl)hydrazine: 591-17-3;7664-41-7;583-75-5.

 1-(4-Bromo-2-Methylphenyl)hydrazine, HClfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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