1H-1,2,4-triazol-5-amine

C2H4N4

CAS61-82-5
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
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Identification

CAS Number
61-82-5
EC Number
200-521-5
UN Number
3077
Index Number
613-011-00-6
PubChem CID
1639

Physical-chemical properties

Molecular Formula
C2H4N4
Molar Mass
84.08 g/mol
IUPAC Name
1H-1,2,4-triazol-5-amine

Chemical Identifiers

InChI
InChI=1S/C2H4N4/c3-2-4-1-5-6-2/h1H,(H3,3,4,5,6)
InChI Key
KLSJWNVTNUYHDU-UHFFFAOYSA-N

Overview

1H-1,2,4-triazol-5-amine (CAS 61-82-5) is a heterocyclic organic compound with an amino-substituted triazole ring structure exhibiting notable biological activity and synthetic versatility. This nitrogen-rich heterocyclic compound belongs to the triazole family, characterized by a five-membered ring containing three nitrogen atoms and bearing an amino group at the 5-position. With a molecular formula of C2H4N4 and molecular weight of 84.08 g/mol, 1H-1,2,4-triazol-5-amine serves as an important building block in pharmaceutical and agrochemical synthesis. The compound's unique structural features, including multiple nitrogen atoms and the primary amino functionality, contribute to its reactivity and ability to form hydrogen bonds, making it valuable for developing bioactive molecules. From a safety perspective, this substance is classified under GHS with Warning signal word and requires careful handling due to its reproductive toxicity (Repr. 2) and specific target organ toxicity following repeated exposure (STOT RE 2). The presence of GHS08 and GHS09 pictograms indicates potential health hazards and aquatic chronic toxicity. Transport classification under ADR Class 9 designates it as a miscellaneous dangerous substance requiring appropriate shipping protocols. Industrial applications of 1H-1,2,4-triazol-5-amine primarily focus on pharmaceutical intermediate synthesis, where it serves as a precursor for antifungal agents and other therapeutic compounds. The agrochemical industry utilizes this compound in developing fungicides and plant protection products, leveraging the triazole ring's inherent biological activity. Additionally, it finds use in specialty chemical manufacturing for producing advanced materials and coordination complexes, often in applications distinct from structurally different compounds like propan-2-yl N-(3-chlorophenyl)carbamate used in different agrochemical formulations. OYSI maintains reliable supply chains for 1H-1,2,4-triazol-5-amine, ensuring consistent availability for European industrial customers requiring this specialized heterocyclic intermediate.

Safety & Classification

Warning
Classification:

Repr. 2; STOT RE 2 *; Aquatic Chronic 2

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H373

May cause damage to organs through prolonged or repeated exposure.

H411

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

Transport (ADR)

UN Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping NameAmitrol (ISO)
Marine PollutantNo

Frequently Asked Questions

What is 1H-1,2,4-triazol-5-amine?

1H-1,2,4-triazol-5-amine is a heterocyclic organic compound with the molecular formula C2H4N4 and CAS number 61-82-5. This triazole derivative contains both a five-membered ring with three nitrogen atoms and an amino group, giving it unique chemical properties. With a molecular weight of 84.08 g/mol, it serves as an important building block in pharmaceutical and agrochemical synthesis.

What are the physicochemical properties of 1H-1,2,4-triazol-5-amine?

1H-1,2,4-triazol-5-amine is typically a crystalline solid at room temperature with high solubility in water due to its polar amino and triazole groups. The compound exhibits basic properties due to the nitrogen atoms in the ring and amino group, allowing it to form salts with acids. Its melting point and other specific physical properties depend on purity and crystalline form.

What is 1H-1,2,4-triazol-5-amine used for?

1H-1,2,4-triazol-5-amine serves primarily as an intermediate in pharmaceutical synthesis and agrochemical production. It is used in the manufacture of antifungal agents, herbicides, and other bioactive compounds. The compound's triazole structure makes it valuable for developing molecules with antimicrobial properties and as a building block for more complex heterocyclic compounds in fine chemical synthesis.

How to handle 1H-1,2,4-triazol-5-amine safely?

1H-1,2,4-triazol-5-amine requires careful handling due to its classification as Repr. 2 and STOT RE 2. Workers must wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and lab coats. Ensure adequate ventilation to minimize inhalation exposure. Avoid skin contact and ingestion, and wash hands thoroughly after handling. Work in a well-ventilated area or under a fume hood when possible.

How to store 1H-1,2,4-triazol-5-amine correctly?

1H-1,2,4-triazol-5-amine should be stored in a cool, dry place away from direct sunlight and heat sources. Keep containers tightly closed to prevent moisture absorption and contamination. Store separately from strong oxidizing agents and acids to avoid unwanted reactions. Ensure proper labeling with GHS08 and GHS09 pictograms and maintain storage areas with appropriate ventilation and spill containment measures.

What to do in case of contact with 1H-1,2,4-triazol-5-amine?

In case of skin contact with 1H-1,2,4-triazol-5-amine, immediately wash the affected area with plenty of soap and water for at least 15 minutes. For eye contact, rinse thoroughly with water for 15-20 minutes and remove contact lenses if present. If inhaled, move to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician if symptoms develop.

How to dispose of 1H-1,2,4-triazol-5-amine properly?

1H-1,2,4-triazol-5-amine must be disposed of according to local and national hazardous waste regulations due to its classification as Aquatic Chronic 2. Contact licensed waste disposal companies for proper treatment and disposal. Do not discharge into drains, water courses, or soil. Small quantities may require incineration at authorized high-temperature facilities. Always consult current waste disposal regulations in your jurisdiction.

How to transport 1H-1,2,4-triazol-5-amine?

1H-1,2,4-triazol-5-amine is classified as ADR Class 9 (Miscellaneous dangerous goods), Packing Group III for transportation purposes. This classification requires appropriate packaging, labeling, and documentation for road transport. Use UN-approved packaging and ensure proper marking with the substance name and UN number. Transport vehicles must carry appropriate emergency equipment and drivers should be trained in handling hazardous materials.

Is 1H-1,2,4-triazol-5-amine subject to specific regulations?

1H-1,2,4-triazol-5-amine is subject to CLP regulation due to its hazard classifications (Repr. 2, STOT RE 2, Aquatic Chronic 2) and REACH registration requirements for commercial use in Europe. While not currently listed as a SVHC substance, it requires proper classification, labeling, and safety data sheets. Users must comply with occupational exposure limits and environmental protection measures as specified in relevant national legislation.

Where to buy 1H-1,2,4-triazol-5-amine in Europe?

1H-1,2,4-triazol-5-amine is available through OYSI, a European distributor specializing in technical chemical products. OYSI provides this compound with full regulatory compliance including proper CLP labeling, safety data sheets, and REACH documentation. As a professional chemical distributor, OYSI ensures quality standards and regulatory compliance for industrial and research applications across European markets.

Data Sources

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