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1, 3, 5-TrimethylBenzene

Alias: 1,3,5-Trimethyl benzene; Mesitelene; Mesitileno; Msitylne;3,5-Dimethyltoluene; Trimethylbenzol;
Molecule Formula: C9H12
Structurer Formula:

CAS No.: 108-67-8
Molecule weight: 120

Physical chemical properties:

Colorless transparent liquid.Melting point: -type -45棻-type 51. Boiling point 164.7. Relative density( d420 )0.864. Refractive index ( nd21 )1.4994. Flash point 44. Self-combustion point 550. Insoluble in water, soluble in ethanol. Soluble in benzene, aether,acetone with any ratio.

Typical Data:

Standard:  Q/3201 NJLY 03-2017 appendix A (Testing updated on Oct., 31, 2019 with batch number: 2019103101-33#, from storage tank 33#)



Testing results

1,3,5-Trimethylbenzene,% (w/w)  min






Density(20), kg/m3



Sulfur Content


1.0 ppm

Saybolt color, min



Product Applications:

It is a raw material for organic synthesis. It is used to make 1,3,5-Benzene Tricarboxylic Acid, antioxidant, ethoxyline resin solidifying agent, polyester resin stabilizer, and alkide resin plasticizer. It is used to produce 2,4,6-trimethyl benzene for making such dyes as active cobalt blue and K-3R.

Manufacture method:

Distill heavy aromatic hydrocarbons to obtain pseudocumene. At the same time, isomerize highly pure 1,2,4Trimethyl Benzene to 1,3,5trimethyl benzene. Then fraction distillation is performed to isolate1,3,5trimethyl benzene from the reaction oil.

Toxicity and protection:

Its toxicity is similar to dimethylbenzene.It irritates the nose and the throat. The highest permitted concentration in air is 125mg/m3. The operation spot should be well ventilated and the operators should wear protection masks.

Packaging, storage and transportation:

DOT Hazard Class:


DOT Identification Number:


DOT Packing Group:


SDS(Safety Data Sheet) preview and download

H.S. CODE: 2902.9090.90

Fire and insolation should be avoided during storage. It should be separated from oxidants. It should be handled with care to avoid breaking the package. Securely sealed iron barrel no thinner than 1.2mm should be used to pack the product and each barrel should not exceed 200kg. If it is packed into plastic barrels or glass bottles, securely seal the containers before put them into wood cases, which should be securely lined inside with inflammable materials and tightly tied outside with iron wires or iron sheets. Each case should not exceed 50kg and be marked with "flammable".

Drum loading: 200 Ltrs (170kgs) per galvanized iron drum,80 drums per 20'FCL, total 13,600kgs.

ISO Tank Loading: 20,000 kgs per 25 CBM ISO Tank.

We hereby stongly recommend that loading by ISO Tank is much more economical and convenient than by drum + container, if our customer can receive the goods from ISO Tank.


Sample arrangement:

We can arrange the sample to you for your approval, and please check the details as below:

We strongly recommend that the sample to be arranged by air, to be frank, it is the most economical and convinent method till now according to our experience.

The sample itself is free, but our customer will pay for the air freight cost according to the support also requirement from our partners.

We have very strict management on sample preparation, and have very good relationship with the airline companies, so we may send our samples to almost all of the main airport in the world.

There are several ways to arrange the sample with different cost, details could be discussed.

Enquiry (purchase/order/demand )or any problem, please contact or by Tel & Fax with the details on the homepage.