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Quick Details

  • CAS No.: 496-72-0;2687-25-4
  • Other Names: OTDA
  • MF: C7H10N2
  • EINECS No.: -
  • Place of Origin: Texas, United States
  • Grade Standard: Industrial Grade
  • Purity: 99%
  • Appearance: Light grey
  • Application: chemical intermediate
  • Brand Name: XST
  • Model Number: XST-G005
  • UN NO.: 3077
  • Name: Ortho Toluenediamine Supplier

Packaging & Delivery

Packaging Details: 200 kgs/ drum
Delivery Detail: within 2 weeks after confirmation of the order

Industrial Grade Ortho Toluenediamine/OTD Supplier


1.  Chemical Name:   OTD, OTDA, Ortho Toluenediamine 

2.  UN NO.:  3077
3.  Normalized Isomer ration: 

3,4-Toluenediamine: CAS:496-72-0        60%
2,3-Toluenediamine: CAS:2687-25-4      40%

4.  Molecular formula: C7H10N2   Molecular Weight: 122

5.   Properties: It is light grey solid and very unstable at normal temperature so that its color can change quickly.

6.   Ignition point:62.78°C, flash point:157.22°C, spontaneous:540°C.

It is soluble in water, benzene, chloroform, ethyl acetate and alcoho,etc. It has irritated feel to skin.

7.  Quality index: Inspection Item 

Appearance       light gyey

Purity (%)            ≥99.5 

Melting point(°C)     60 -62

Moisture(%)         ≤0.20

Density(24°C)        1.05

PH scope             11.5-12.0
8.   Uses: It is used as chemical intermediate in order to corrosion inhibitor tolyltriazole, antioxidant MMB etc.
OTD as a polyether initiator made the polyether, The foam being made of this polyether have uniformity , meticulous properties, and no contraction. It can improve the foam’s performance of heat insulation and it’s the measurement of low-temperature performance. Besides. polyether which is made of OTD have better compatibility with cyclopentane.
It can substitute for o-phenylenediamine,and can be used many other fields such as epoxy resin curing, inimer formed, cross-linked of polymer.
9.   Packing: 200 kgs/drum, as customer's required

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

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China (Mainland)
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3 Transactions 20,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.