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

Preparation Products

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2,5-Diaminotoluene Suppliers

Ningbo Agracechem Technology Co., Ltd.
Tel
0574-87621641 13989375151
Email
tianze@agracechem.com
Country
China
ProdList
33
Advantage
58
Hubei Zhonglong Kangsheng fine chemical Co.,Ltd
Tel
027-027-82752821 18186694582
Fax
027-82752821
Email
323495346@qq.com
Country
China
ProdList
1246
Advantage
58
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
China Langchem Inc.
Tel
0086-21-58956006
Fax
0086-21-58956100
Country
China
ProdList
7811
Advantage
57
Hangzhou Yuhao Chemical Technology Co., Ltd
Tel
0571-82693216
Fax
+86-571-82880190
Email
info@yuhaochemical.com
Country
China
ProdList
9387
Advantage
52
Shanghai T&W Pharmaceutical Co., Ltd.
Tel
+86 21 61551611
Fax
+86 21 50676805
Country
China
ProdList
9891
Advantage
58
TOKYO CHEMICAL INDUSTRY CO., LTD.
Tel
03-36680489
Fax
03-3668-0520
Email
Sales-JP@TCIchemicals.com
Country
Japan
ProdList
28387
Advantage
80
TCI Europe
Tel
320-37350700
Fax
+32 (0)37350701
Email
sales@tcieurope.eu
Country
Europe
ProdList
23671
Advantage
75
TCI AMERICA
Tel
800-4238616
Fax
+1-888-520-1075 / +1-503-283-1987
Email
sales@tciamerica.com
Country
Americas
ProdList
23653
Advantage
75
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
18209
Advantage
56
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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

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