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Quick Details

  • CAS No.: 57-39-6
  • Other Names: Tri-1-(2-methylaziridinyl)phosphine oxide
  • MF: MAPO
  • EINECS No.: 231-545-4
  • Purity: 99.9%
  • Place of Origin: Liaoning, China (Mainland)
  • Type: bonding agent
  • Usage: Electronics Chemicals, Leather Auxiliary Agents, Textile Auxiliary Agents, bonding agents
  • Brand Name: tanyun
  • Model Number: Industrial Grade
  • Product name: Tri-1-(2-methylaziridinyl)phosphine oxide
  • CAS: CAS RN:57-39-6
  • Appearance: Yellow or light-brown oil liquid
  • Packing: two plastic casks in a wooden case
  • Application: cross-linking agent and curing agent on the cladding layers
  • Shelf life: 12 months
  • purity: 1st grade>=92.0 2nd grade>=86.0
  • Color: yellow or light-brown
  • executive standard: GJB 1959-94
  • English alias: Tri(2-methylaziridinyl) phosphine oxide

Packaging & Delivery

Packaging Details Packing: Two plastic casks in a wooden case. Net Weight: 10 kg/cask; 20 kg/case.
Customized packaging is available
Delivery Time 3 working days
Product Description

factory solid propellant bonding  agent cas 57-39-6 Tris-1-(2-methylaziridinyl)phosphine oxide/MAPO

 Executive standard: GJB 1959-94

 English alias: Tris(2-methylaziridinyl) phosphine oxide   

 English abbreviation: MAPO

 CAS RN: 57-39-6

 Molecular Weight: 215.23

 Molecular formula: C9H18N3OP

 1. Physical and chemical properties:

1.1 Odor: Foul smell with rotten green grass.

1.2 Solubility: Freely dissolved in organic solvents, such as methylene dichloride, chloroform, ethyl ether, etc. Slightly soluble in water.

1.3 Boiling point: 90-92, 0.15-0.3mmHg

1.4 Stability: Decomposing temperature is 170. It will be decomposed in any acid. The polymerization occurs when contacted with acidic material or impurities containing active hydrogen. The copolymerization and cross-linking can be also taken place when contacted with the compounds containing two or more than two active hydrogen.

 2. Technical indexes:





Purity(in imines) ,%(m/m)






Insoluble in methanol ,%(m/m)



Total Cl content(in Cl) ,%(m/m)



Hydrolyzed chlorine(in Cl) ,%(m/m)




Yellow or light-brown oil liquid, No visible impurity

 3. Application: MAPO has been used as cross-linking agent and curing agent on the cladding layers of missile resin to heighten the capabilities of elasticity and ballistic in propellant. It works well for the application of AP-based oxidizer in HTPB propellant.

 4. Safety instructions: Toxic. Operation must be installed with rubber gloves, a respirator and eye protection by wearing protective clothing to avoid contacting with skin, eyes and clothing.

Packaging & Shipping

 6. Storage: Stored in a cool, ventilated place. Casks should be sealed with nitrogen. Avoid heat and exposure.The shelf life is 12 months after manufacturer date. It is still available if retest result is qualified after expire date.

 7. Transportation: Code of hazardous goods is 61120. Keep upright when transported, avoid violent collision and exposure.

Company Information


   Yingkou Tanyun Chemical Research Institute Co., Ltd
              47 years history  of manufacturing fine chemicals

               5 R&D bases and OEM ,customization service.
Founded in 1971, Yingkou Tanyun Chemical Research Institute Co., Ltd (Tanyun Chemical for short) is the parent company of Tanyun Technology Group. Currently covering an area of about 12000 square meters, Tanyun Chemical is the first domestic technological platform company of ‘Chemical New Materials Production and Research Incubator’ and the first domestic custom-made research and production company of fine chemicals intermediate research and production company.
Technology strength
Shanghai R&D base ,Hangzhou R&D base 

Suzhou R&D base ,Yingkou R&D base 
develop the research and production work for aerospace and defense industry products and fine chemical intermediates products for civilian use. 


Our service     

 Develop custom-made products according to the clients’ requests and offer OEM service.

1.Forty years technique deposition
2.Military standard quality
3.Free sample
4.Small order is acceptable
5. 24 hours on line service




passedGJB9001B 2009(National Military Standard) quality management system certification ,which is stricter than IS09001 international quality certificate.



1.Why  choose us?
We're a professional  manufacturer with 47 years history and 5 R&D bases. we can supply one-stop service from sample ,development and research, order, delivery, after-sale service

2.What is our payment term?

T/T in advance.

3.Delivery time?

ASAP after your payment

4.What is your advantage?
High quality products, strict quality testing, OEM and Customization service.


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