CAS 119-93-7 o-Tolidine, Powder, Reagent - Materials / Alfa Chemistry

NAVIGATION

o-Tolidine, Powder, Reagent

PRICE INQUIRY

Catalog Number

ACM119937-1

CAS Number

119-93-7

Product Name

o-Tolidine, Powder, Reagent

Structure

Category

Electroluminescence Materials

Description

3,3'-dimethylbenzidine appears as white to reddish crystals or crystalline powder or a light tan powder. (NTP, 1992);COLOURLESS CRYSTALS OR RED-TO-BROWN FLAKES.;White to reddish crystals or powder.;White to reddish crystals or powder. [Note: Darkens on exposure to air. Often used in paste or wet cake form. Used as a basis for many dyes.]

IUPAC Name

4-(4-amino-3-methylphenyl)-2-methylaniline

Molecular Weight

212.29g/mol

Molecular Formula

C14H16N2;C14H16N2

Canonical SMILES

CC1=C(C=CC(=C1)C2=CC(=C(C=C2)N)C)N

InChI

InChI=1S/C14H16N2/c1-9-7-11(3-5-13(9)15)12-4-6-14(16)10(2)8-12/h3-8H,15-16H2,1-2H3

InChI Key

NUIURNJTPRWVAP-UHFFFAOYSA-N

Boiling Point

392 °F at 760 mm Hg (NTP, 1992);339.0 °C;300 °C;300 °C;392°F;572°F

Melting Point

264 to 268 °F (NTP, 1992);131.5 °C;129-131 °C;131-132 °C;264°F;264°F

Flash Point

244 °C;471°F

Density

1 (NTP, 1992);1.234 g/cu cm;1.2 g/cm³;1

Solubility

less than 1 mg/mL at 66° F (NTP, 1992);0.01 M;In water, 1,300 mg/L at 25 °C;Soluble in alcohol, ether, dilute acids;Solubility in water, g/100ml at 25 °C: 0.13 (poor);0.1%

Application

o-Tolidine, powder, reagent is a versatile chemical compound primarily used as a key ingredient in producing a wide variety of dyes. This compound, characterized by its white to reddish crystalline appearance and an aniline-like odor, is notable for its solubility in alcohol, ether, and dilute acids, while being only slightly soluble in water. Although it tends to darken when exposed to air, it is typically used in paste or wet cake form to maintain stability. Recognized as a member of biphenyls with the molecular formula (C6H4(CH3)NH2)2, o-Tolidine is also vital in the preparation of polyimide and epoxy resin materials. It is a colorless aromatic amine, but commercial samples may appear colored due to various isomers and derivatives, such as the commercially significant 3-tolidine. This compound's reactivity allows it to form salts with acids, and it is also known for emitting toxic nitrogen oxides fumes when heated to decomposition.

Color/Form

Colorless; in technical grades also brownish flakes;White to reddish crystals or powder [Note: Darkens on exposure to air]

Complexity

205

Covalently-Bonded Unit Count

EC Number

204-358-0

Exact Mass

212.131349g/mol

Formal Charge

Heavy Atom Count

ICSC Number

0960

Log P

2.34 (LogP);log Kow = 2.34;2.34

MeSH Entry Terms

2-tolidine;2-tolidine dihydrochloride;2-tolidine dihydrofluoride;2-tolidine hexahydrofluoride;2-tolidine perchlorate;2-tolidine perchlorate (1-);2-tolidine tetrahydrofluoride;3,3'-dimethylbenzidine;o-tolidine;tolidine blue

Monoisotopic Mass

212.131349g/mol

Other Experimental

MP: 264 °F;Barely becomes discolored upon exposure to air. It is chemically resistant to water.;Henry's Law constant = 6.3X10-11 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant = 1.9X10-10 cu cm/molecule-sec at 25 °C (est)

Rotatable Bond Count

RTECS Number

DD1225000

UNII

63HLO2IV6K

UN Number

3077

Vapor Pressure

1.0X10-6 mm Hg at 25 °C (est);1x10-6 mmHg (est)

XLogP3

2.3

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