4-[(4-aminophenyl)diazenyl]-3-methylaniline

C13H14N4

CAS43151-99-1
GHS06 Gefahrensymbol: Giftig – Totenkopf mit Knochen
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

Consulting for 4-[(4-aminophenyl)diazenyl]-3-methylaniline

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Identification

CAS Number
43151-99-1
EC Number
407-590-2
UN Number
2811
Index Number
611-046-00-1
PubChem CID
176021

Physical-chemical properties

Molecular Formula
C13H14N4
Molar Mass
226.28 g/mol
IUPAC Name
4-[(4-aminophenyl)diazenyl]-3-methylaniline

Chemical Identifiers

InChI
InChI=1S/C13H14N4/c1-9-8-11(15)4-7-13(9)17-16-12-5-2-10(14)3-6-12/h2-8H,14-15H2,1H3
InChI Key
UOABMKNOHFGBSD-UHFFFAOYSA-N

Overview

4-[(4-aminophenyl)diazenyl]-3-methylaniline (CAS 43151-99-1) is an azo compound featuring dual amino functionalities and methylated aromatic structure. This diazene derivative belongs to the family of aromatic azo compounds, characterized by its distinctive nitrogen-nitrogen double bond connecting two substituted benzene rings. The molecular structure incorporates amino groups at strategic positions along with a methyl substituent, contributing to its specific chemical reactivity and industrial utility. With a molecular weight of 226.28 g/mol and formula C13H14N4, this compound exhibits properties typical of substituted aniline derivatives while maintaining the characteristic features of azo chemistry. The substance presents significant safety considerations, classified under multiple hazard categories including acute toxicity (Category 3), skin sensitization, and specific target organ toxicity with repeated exposure. Environmental precautions are essential due to its aquatic toxicity profile, requiring careful handling protocols and appropriate containment measures. The GHS classification with danger signal word reflects the need for comprehensive risk management strategies during storage, handling, and processing operations. Industrial applications primarily focus on dye intermediate synthesis and specialized chemical manufacturing processes. The compound serves as a valuable building block in the production of complex colorants and pharmaceutical intermediates. Its structural similarity to related compounds such as N-methylaniline makes it particularly useful in synthetic pathways requiring specific substitution patterns and azo linkages. Transportation requirements follow ADR Class 6.1 regulations, ensuring proper classification for toxic substances during logistics operations. OYSI maintains availability of 4-[(4-aminophenyl)diazenyl]-3-methylaniline for qualified industrial customers throughout Europe, supporting diverse chemical manufacturing applications with appropriate technical documentation and safety guidance.

Safety & Classification

Danger
Classification:

Acute Tox. 3 *; STOT RE 2 *; Skin Sens. 1; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H301

Toxic if swallowed.

H373

May cause damage to organs through prolonged or repeated exposure.

H317

May cause an allergic skin reaction.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Irritant

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Toxic

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number2811
ADR Class6.1
Packing GroupIII
Tunnel CodeE
Proper Shipping Name4,4'-Diamino-2-methylazobenzen
Marine PollutantNo

Frequently Asked Questions

What is 4-[(4-aminophenyl)diazenyl]-3-methylaniline?

4-[(4-aminophenyl)diazenyl]-3-methylaniline is an organic chemical compound with the molecular formula C13H14N4 and CAS number 43151-99-1. This aromatic amine features a diazenyl bridge connecting two substituted benzene rings, with amino groups and a methyl substituent. It has a molecular weight of 226.28 g/mol and belongs to the class of azo compounds, which are characterized by the presence of the nitrogen-nitrogen double bond (N=N) in their structure.

What are the physicochemical properties of 4-[(4-aminophenyl)diazenyl]-3-methylaniline?

4-[(4-aminophenyl)diazenyl]-3-methylaniline is a solid aromatic compound at room temperature with a molecular weight of 226.28 g/mol. As an azo compound containing amino groups, it typically appears as a colored crystalline solid, often ranging from yellow to red-brown. The compound exhibits limited water solubility due to its aromatic structure but may dissolve in organic solvents. Its chemical stability and specific physical properties depend on storage conditions and environmental factors.

What is 4-[(4-aminophenyl)diazenyl]-3-methylaniline used for?

4-[(4-aminophenyl)diazenyl]-3-methylaniline is primarily used as an intermediate in chemical synthesis and manufacturing processes. Its azo structure and amino functionalities make it valuable for producing dyes, pigments, and other specialty chemicals. The compound serves as a building block in pharmaceutical research and development, as well as in the production of advanced materials. It may also be utilized in analytical chemistry applications and research into new chemical compounds.

How to handle 4-[(4-aminophenyl)diazenyl]-3-methylaniline safely?

4-[(4-aminophenyl)diazenyl]-3-methylaniline requires careful handling due to its classification as Acute Tox. 3, STOT RE 2, and Skin Sens. 1. Essential personal protective equipment includes chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or use fume hoods to prevent inhalation. Avoid skin and eye contact, and never eat, drink, or smoke while handling. Follow strict hygiene practices and wash hands thoroughly after use.

How to store 4-[(4-aminophenyl)diazenyl]-3-methylaniline correctly?

4-[(4-aminophenyl)diazenyl]-3-methylaniline should be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly sealed and properly labeled in accordance with GHS requirements. Store separately from incompatible materials such as strong oxidizing agents and acids. Maintain storage temperature within recommended ranges and ensure access is restricted to trained personnel only. Regular inspection of containers for damage or deterioration is essential.

What to do in case of contact with 4-[(4-aminophenyl)diazenyl]-3-methylaniline?

In case of skin contact with 4-[(4-aminophenyl)diazenyl]-3-methylaniline, immediately remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. For eye contact, flush with clean water for 15-20 minutes and remove contact lenses if easily removable. If inhaled, move to fresh air immediately. If ingested, do not induce vomiting and rinse mouth with water. Seek immediate medical attention in all cases and provide safety data sheet information to medical personnel.

How to dispose of 4-[(4-aminophenyl)diazenyl]-3-methylaniline appropriately?

4-[(4-aminophenyl)diazenyl]-3-methylaniline must be disposed of as hazardous waste in accordance with local, national, and EU regulations. Due to its aquatic toxicity classification (Aquatic Acute 1, Aquatic Chronic 1), prevent environmental release. Contact licensed hazardous waste disposal companies for proper collection and treatment. Never dispose of in regular waste streams, sewers, or water bodies. Maintain detailed waste disposal records and follow all applicable waste management regulations and guidelines.

How to transport 4-[(4-aminophenyl)diazenyl]-3-methylaniline?

4-[(4-aminophenyl)diazenyl]-3-methylaniline is classified as ADR Class 6.1 (toxic substances), Packing Group III for transportation purposes. Packages must comply with UN packaging requirements and bear appropriate hazard labels including GHS06, GHS08, and GHS09 pictograms. Transport documents must include proper shipping names, UN numbers, and emergency contact information. Only use approved packaging and ensure drivers have proper training and certification for transporting toxic materials.

Is 4-[(4-aminophenyl)diazenyl]-3-methylaniline subject to specific regulations?

4-[(4-aminophenyl)diazenyl]-3-methylaniline is subject to multiple European regulations including REACH registration requirements and CLP classification obligations. While not currently listed as a SVHC (Substance of Very High Concern), its hazard classifications require compliance with worker safety directives and environmental protection measures. Companies must maintain safety data sheets, implement risk management measures, and ensure proper labeling. Additional restrictions may apply depending on specific uses and applications within various industrial sectors.

Where to buy 4-[(4-aminophenyl)diazenyl]-3-methylaniline in Europe?

4-[(4-aminophenyl)diazenyl]-3-methylaniline is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this compound to industrial customers across Europe with full regulatory compliance and technical support. When purchasing, ensure suppliers provide complete documentation including certificates of analysis, safety data sheets, and REACH compliance information. Contact OYSI directly for availability, specifications, and technical assistance for your specific application requirements.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.