CAS 3030-47-5


Pentamethyldiethylenetriamine is a chemical substance with a molecular formula of C9H23N3. It is a high-efficiency catalyst for soft polyurethane foam, used in the formulation of soft foam products, and as an auxiliary catalyst for hard foam to improve the fluidity of PU foam in large-capacity refrigerators.

Chinese name N,N,N,N,N-pentamethyldiethylenetriamine
English name N,N,N’,N”,N”-Pentamethyldiethylenetriamine
Don’t call 1,1,4,7,7-Pentamethyldiethylenetriamine, CAS 3030-47-5, PC- 5 catalyst, hard foam catalyst PC5
Chemical formula C9H23N3
Molecular weight 173.3
CAS login number 3030-47-5
melt point −20℃
Boiling Point 198°C
Water-soluble soluble in water, ether and alcohol solvents
Outside View colorless or slightly yellow transparent liquid
Flash Point 53°C
MDL number: MFCD00014876
Refractive index: 1.442(lit.)

PentamethyldiethylenetriaminePhysical properties:

English name: N,N,N’,N”,N”-Pentamethyldiethylenetriamine
Molecular formula: C9H23N3
Molecular weight: 173.3

Physical and chemical performance
Pentamethyldiethylenetriamine is a colorless to light yellow clear liquid, easily soluble in water.
Purity: 98.0%
Viscosity (25°C): 2mPa.s
Relative density (20℃): 0.8302-0.8306
Flash point (closed loop): around 72℃
Flash point (PMCC): 83.3℃
Boiling range: 196-201℃ or 70-80℃(1100Pa)
Vapor pressure (21℃): 0.29*133pa
Freezing point: <-20℃

Method of Making
Pentamethyldiethylenetriamine is generally obtained from diethylenetriamine for N-methylation. The methylation methods include formic acid/formaldehyde method and formaldehyde Hydrogenation etc.

pentamethyl two  Ethylene triamine CAS 3030-47-5 PC-5 catalyst hard foam catalyst PC5

Pentamethyldiethylenetriamine CAS 3030-47- 5 PC-5 catalyst hard foam catalyst PC5

Features and uses:
Pentamethyldiethylenetriamine is a highly active and strong foaming polyurethane catalyst, which can also be used to balance the overall foaming and gel reaction. It is widely used in various polyurethane rigid foams, including polyisocyanuric acid sheet rigid foams, and can also improve foam fluidity, so it can improve product production technology and product quality. Pentamethyldiethylenetriamine can also be used alone as a catalyst for polyurethane foam formulations, or it can be used in combination with other catalysts such as DNCHA. When used alone as a hard foam catalyst, the dosage range is 1.0-2.0 parts by mass per 100 parts by mass of polyol. In addition to being used in rigid foam formulations, pentamethyldiethylenetriamine can also be used in the production of poly-rice polyurethane soft slab foam and molded foam.

Storage and transportation:

Should be sealed and stored in a dry, cool and ventilated warehouse


180KG/bucket Storage: It is recommended to store in a dry and cool area with proper ventilation. After the original packaging, please fasten the packaging cover as soon as possible to prevent the product performance from being mixed with other substances such as waterproof grade. Do not inhale dust and avoid contact with skin and mucous membranes. Smoking, eating and drinking are prohibited in the workplace. After work, take a shower and change clothes. Store contaminated clothes separately and use them after washing. Maintain good hygiene habits.