2,5-Diaminotoluene

ChemicalBook > CAS DataBase List > 2,5-Diaminotoluene

2,5-Diaminotoluene

Product Name: 2,5-Diaminotoluene
CAS No.: 95-70-5
Chemical Name: 2,5-Diaminotoluene
Synonyms: ci76042;c.i.76042;C.I. 76042;DIAMINOTOLUENES;p-Toluenediamine;p-Toluylendiamine;2,5-Diaminotoluol;p-Toluilenediamine;4-TOLUYLENEDIAMINE;2,5-DIAMINOTOLUENE
CBNumber: CB4228730
Molecular Formula: C7H10N2
Formula Weight: 122.17
MOL File: 95-70-5.mol

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2,5-Diaminotoluene Property

Melting point:: 64°C
Boiling point:: 273°C
Density: 1.0343 (rough estimate)
vapor pressure: 0.454Pa at 25℃
refractive index: 1.5103 (estimate)
solubility: Soluble in water
form: powder to crystal
pka: 5.98±0.10(Predicted)
color: White to Brown
Water Solubility: 500g/L at 20℃
Stability:: Hygroscopic
LogP: -0.321 at 25℃
CAS DataBase Reference: 95-70-5(CAS DataBase Reference)
NIST Chemistry Reference: 1,4-Benzenediamine, 2-methyl-(95-70-5)
IARC: 3 (Vol. 16, Sup 7) 1987
EPA Substance Registry System: Toluene-2,5-diamine (95-70-5)

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Safety

Hazard Codes: T,N
Risk Statements: 20/21-25-43-51/53
Safety Statements: 24-37-45-61
RIDADR: 2811
RTECS: XS9700000
HazardClass: 6.1(b)
PackingGroup: III
HS Code: 2921511990
Hazardous Substances Data: 95-70-5(Hazardous Substances Data)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TCI Chemical

Product number: D4628
Product name: 2,5-Diaminotoluene
Purity: >98.0%(GC)(T)
Packaging: 5g
Price: $57
Updated: 2024/03/01

TCI Chemical

Product number: D4628
Product name: 2,5-Diaminotoluene
Purity: >98.0%(GC)(T)
Packaging: 25g
Price: $225
Updated: 2024/03/01

TRC

Product number: T535877
Product name: 2,5-Diaminotoluene(>80%)
Packaging: 5g
Price: $65
Updated: 2021/12/16

SynQuest Laboratories

Product number: 3730-1-84
Product name: 2,5-Diaminotoluene
Purity: 98%
Packaging: 5G
Price: $90
Updated: 2021/12/16

SynQuest Laboratories

Product number: 3730-1-84
Product name: 2,5-Diaminotoluene
Purity: 98%
Packaging: 100g
Price: $605
Updated: 2021/12/16

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2,5-Diaminotoluene Chemical Properties,Usage,Production

Description

p-Toluylenediamine is a hair dye associated with contact dermatitis in hairdressers. Cross reactivity is observed with PPD.

Chemical Properties

Colorless plates. Soluble in water, ethanol, ether, and hot benzene 2,5-Toluenediamine is used in hair and fur dyes.

Uses

2,5-Toluenediamine is used primarily in hair dye formulations as one of the major oxidation dye precursors. It is also used in the synthesis of saframine, a family of dyes used as biological stain, and may be present in indelible ink, antifreeze, and nail polish.
As may be expected from its use in hair dye formulations, hairdressers and barbers may be exposed to 2,5-TDA. Workers in the dye manufacturing industry may also be exposed.

Definition

ChEBI: A diamine in which the two amino groups are substituted into toluene at the 2- and 5-positions.

Synthesis Reference(s)

Journal of the American Chemical Society, 102, p. 6182, 1980 DOI: 10.1021/ja00539a054

Flammability and Explosibility

Non flammable

Contact allergens

Toluene-2,5-diamine is a permanent hair dye involved in contact dermatitis in hairdressers and consumers. It does not cross-react with PPD, but cosensitization is frequent.

Safety Profile

Poison by ingestion and subcutaneous routes. A skin irritant. Mutation data reported. Questionable carcinogen. Has a toxic action upon the liver and can cause fatty degeneration of that organ. Its total effect upon the body seems to take place three chfferent ways. It is toxic to the central nervous system, producing jaundice by action on the liver and spleen, and anemia by destruction of the red blood cells. This action is quite similar to that of aniline, although by no means identical with it. Its high boiling point and the fact that the material is solid at room temperature make it somewhat less hazardous than aniline, particularly at ordinary working temperatures. The literature contains a reference to a permanent injury to an eye due to the use of this material as an eyelash dye. It is considered to be an irritating dye material. When heated to decomposition it emits toxic fumes of NOx. See also other toluene diamine entries and AROMATIC AMINES.

Carcinogenicity

The possible carcinogenicity of 2,5-TDA (as sulfate salt [6369-59-1]) was tested by the National Cancer Institute in a dietary feeding study. Groups of 50 male and female F344 rats (600 or 2000 ppm) and B6C3F1 mice (600 or 1000 ppm) were given diets containing 2,5-TDA for 78 weeks and then observed for an additional period of 28–31 weeks for rats and 16–19 weeks for mice. The only statistically significant increased incidence was in lung tumors in high-dose female mice, but the evidence was not convincing enough to be attributed to 2,5-TDA. Overall, the compound was considered noncarcinogenic.

2,5-Diaminotoluene Preparation Products And Raw materials

Raw materials

azotoluene

Preparation Products

Basic Red 2

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View Lastest Price from 2,5-Diaminotoluene manufacturers

Qingdao RENAS Polymer Material Co., Ltd.

Product: 2-methyl-p-phenylenediamine 95-70-5
Price: US $0.00/kg
Min. Order: 200kg
Purity: 99%
Supply Ability: 20 tons
Release date: 2024-09-18

Hebei Chuanghai Biotechnology Co,.LTD

Product: 2,5-Diaminotoluene 95-70-5
Price: US $18.60/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 5000kg
Release date: 2024-08-21

Honest Joy Holdings Limited

Product: 2,5-Diaminotoluene 95-70-5
Price: US $0.00/KG
Min. Order: 1KG
Purity: 98.6%
Supply Ability: 100 tons
Release date: 2022-02-18

95-70-5, 2,5-Diaminotoluene Related Search:

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2,5-DIAMINOTOLUENE

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2-METHYL-BENZENE-1,4-DIAMINE

1,4-benzenediamine,2-methyl

2,5-tolylenediamine

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2-hydroxy-N-(4-methyl-2-nitrophenyl)-3-nitrobenzamide

2,5-Diaminotoluene (~80%)

2,5-Diaminotoluene &gt

95-70-5,2,5-Diaminotoluene

95-70-5

Intermediates of Dyes and Pigments