1-Methyl-3-p-tolyltriazene [for Esterification] TCI M0641

Chemical Identity

CAS No.: 21124-13-0
PubChem: CID 30492·SID 87572659
Formula: C8H11N3
Molecular weight: 149.19 g/mol
Purity: >98.0%(HPLC)(T)
Reference databases: ChemSpider·ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 4-methyl-N-(methyldiazenyl)aniline
SMILES: CC1=CC=C(C=C1)NN=NC
InChIKey: DNGJVDGPCGXBFF-UHFFFAOYSA-N

Rp 1.220.100,00

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1-Methyl-3-p-tolyltriazene is a chemical compound widely used in laboratory settings for its role in esterification reactions. This compound serves as a key building block in organic synthesis, enabling the creation of complex molecular structures. Its unique chemical properties make it an essential reagent for chemists working on various synthetic pathways. Due to its reactivity, it is particularly valuable in reactions requiring substitution or functional group modification. Its presence in the chemical toolkit of Indonesian laboratories underscores its importance in both academic and industrial research.

The compound's reactivity and structural versatility make it a preferred choice for synthetic chemists. Its triazene group allows for participation in multiple chemical reactions, offering flexibility in reaction design. While it exhibits stability under certain conditions, it is sensitive to moisture and UV light, which necessitates careful handling and storage. These properties make it ideal for applications where controlled chemical transformations are required, ensuring reliable results in experimental procedures.

In Indonesian laboratories, 1-Methyl-3-p-tolyltriazene is commonly used in organic chemistry research, especially in the development of new compounds and molecular modifications. Its role in esterification processes is critical for producing esters and related derivatives. Researchers in Indonesia rely on this compound for its ability to facilitate complex chemical transformations, supporting both educational and applied research initiatives.

Advantages (TCI brochure)

Reacts with carboxylic acids rapidly under mild conditions to give esters in high yields
Also used for alkylation of phenols, imides and enolized ketones

TCI brochures (PDF)

GC Derivatization Reagents 2026-03-25 · p. 4
Alkylation Reagents for Ester Synthesis 2026-04-06 · p. 2

Related TCI products

Organic synthesis applications benefit from its reactivity and structural versatility, allowing for the creation of complex molecules.
Esterification processes utilize its ability to participate in substitution reactions, enhancing the efficiency of chemical transformations.
Research in molecular modification leverages its triazene group for targeted chemical modifications and functional group introduction.
Chemical reaction optimization relies on its stability under controlled conditions, ensuring consistent results in experimental setups.
Academic and industrial research projects use it as a key reagent in developing new compounds and exploring synthetic pathways.

From the TCI brochure

Methylesterification of 3,5-dinitrobenzoic acid
Methylesterification of fatty acids for GC analysis
Alkylation of alcohols and thiols in the presence of trimethoxyaluminium (as reported)

Brand	TCI
CAS number	21124-13-0
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Non-Heterocyclic Building Blocks
Pack sizes	—
Physical form	—
Storage	Store in a cool, dry place away from moisture and UV light

Data from the TCI brochure

Yield of methyl ester	70-90% (methylesterification of 3,5-dinitrobenzoic acid, light yellow-brown crystal)
Melting point	106-107.5 °C (methyl ester of 3,5-dinitrobenzoic acid, crude)
Reaction time	about 1 hour (until N2 evolution is complete, ether solution)

Source: TCI brochure A1104 (2026-03-25)

This compound should be stored in a cool, dry environment to maintain its chemical stability. It is recommended to use sealed containers to prevent exposure to moisture and UV light, which can affect its reactivity. Due to its sensitivity, it should be handled with care, using appropriate personal protective equipment. Proper storage conditions are essential to ensure its effectiveness in laboratory applications. Laboratory staff should be trained in safe handling procedures to minimize risks associated with its reactivity. Regular monitoring of storage conditions is advised to maintain the integrity of the compound.

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