Pentamethylbenzene
- CAS No.
- 700-12-9
- Chemical Name:
- Pentamethylbenzene
- Synonyms
- 1,2,3,4,5-PENTAMETHYLBENZENE;PentaMethy;PENTAMETHYLBENZENE;Pentamethyl phenyl;Pentmethyl Benzene;pentamethyl-benzen;benzene,pentamethyl-;Pentamethylbenzene>Pentamethylbenzene,99%;Pentamethylbenzene~95%
- CBNumber:
- CB6854133
- Molecular Formula:
- C11H16
- Molecular Weight:
- 148.24
- MDL Number:
- MFCD00008522
- MOL File:
- 700-12-9.mol
Melting point | 49-51 °C (lit.) |
---|---|
Boiling point | 231 °C (lit.) |
Density | 0.917 g/mL at 25 °C (lit.) |
refractive index | 1.5270 |
Flash point | 196 °F |
storage temp. | Sealed in dry,Room Temperature |
form | powder to crystal |
color | White to Almost white |
Water Solubility | 15.52mg/L(temperature not stated) |
BRN | 1905349 |
CAS DataBase Reference | 700-12-9(CAS DataBase Reference) |
FDA UNII | H6JLD3AI98 |
NIST Chemistry Reference | Benzene, pentamethyl-(700-12-9) |
EPA Substance Registry System | Benzene, pentamethyl- (700-12-9) |
UNSPSC Code | 12352100 |
NACRES | NA.22 |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() ![]() GHS02,GHS07 |
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Signal word | Danger | |||||||||
Hazard statements | H228-H315-H319-H335 | |||||||||
Precautionary statements | P210-P302+P352-P305+P351+P338 | |||||||||
Hazard Codes | F,Xi | |||||||||
Risk Statements | 11-36/37/38 | |||||||||
Safety Statements | 16-26-36 | |||||||||
RIDADR | UN 1325 4.1/PG 2 | |||||||||
WGK Germany | 3 | |||||||||
TSCA | Yes | |||||||||
HazardClass | 4.1 | |||||||||
PackingGroup | III | |||||||||
HS Code | 29029090 | |||||||||
NFPA 704 |
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Pentamethylbenzene price More Price(16)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich | 153613 | Pentamethylbenzene 98% | 700-12-9 | 5g | $76.5 | 2024-03-01 | Buy |
Sigma-Aldrich | 153613 | Pentamethylbenzene 98% | 700-12-9 | 100g | $298 | 2024-03-01 | Buy |
TCI Chemical | P0043 | Pentamethylbenzene >99.0%(GC) | 700-12-9 | 5g | $62 | 2024-03-01 | Buy |
TCI Chemical | P0043 | Pentamethylbenzene >99.0%(GC) | 700-12-9 | 25g | $175 | 2024-03-01 | Buy |
Alfa Aesar | L04163 | Pentamethylbenzene, 99% | 700-12-9 | 5g | $33.65 | 2024-03-01 | Buy |
Pentamethylbenzene Chemical Properties,Uses,Production
Chemical Properties
Pentamethylbenzene is a white to light yellow crystalline powder with a sweet odor. The compound is classified as an aromatic hydrocarbon. It is a relatively easily oxidized benzene derivative, with E1/2 of 1.95 V vs NHE.
Uses
Pentamethylbenzene was used to prepare a mixture of nitropentamethylbenzene and 2,3,4,5-tetramethylbenzyl nitrate. It was also used to prepare propene.
Definition
ChEBI: Pentamethylbenzene is a methylbenzene that is benzene in which five of the hydrogens are replaced by methyl groups.
Synthesis Reference(s)
Synthesis, p. 979, 1985 DOI: 10.1055/s-1985-31413
Synthesis
Pentamethylbenzene is obtained as a minor product in the Friedel–Crafts methylation of xylene to durene (1,2,4,5-tetramethylbenzene). Like durene, pentamethylbenzene is rather electron-rich and undergoes electrophilic substitution readily. Indeed, it is used as a scavenger for carbocations.
Pentamethylbenzene has been observed as an intermediate in the formation of hexamethylbenzene from phenol and alkylation of durene or pentamethylbenzene has been reported as a suitable starting material for the synthesis of hexamethylbenzene.
Purification Methods
Successively crystallise it from absolute EtOH, aqueous EtOH, MeOH, toluene *C6H6, and dry it under vacuum. [Rader & Smith J Am Chem Soc 84 1443 1962.] It has also been sublimed. The 1,3,5-trinitrobenzene complex (1:1) has m 121o (EtOH). [Beilstein 5 H 443, 5 III 1010, 5 IV 1109.]
Precautions
Incompatible with oxidizing agents. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Pentamethylbenzene Preparation Products And Raw materials
Raw materials
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Preparation Products
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Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20235 | 58 |
Capot Chemical Co.,Ltd. | +86-(0)57185586718 +86-13336195806 | sales@capot.com | China | 29730 | 60 |
Beijing Cooperate Pharmaceutical Co.,Ltd | 010-60279497 | sales01@cooperate-pharm.com | CHINA | 1803 | 55 |
Shanghai Time Chemicals CO., Ltd. | +86-021-57951555 +8617317452075 | jack.li@time-chemicals.com | China | 1803 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29858 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
Shaanxi Dideu Medichem Co. Ltd | +86-29-81148696 +86-15536356810 | 1022@dideu.com | China | 3883 | 58 |
Fuxin Pharmaceutical | +86-021-021-50872116 +8613122107989 | contact@fuxinpharm.com | China | 10035 | 58 |
SIMAGCHEM CORP | +86-13806087780 | sale@simagchem.com | China | 17365 | 58 |
Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
View Lastest Price from Pentamethylbenzene manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
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2025-04-04 | Pentamethylbenzene
700-12-9
|
US $0.00-0.00 / kg | 1kg | 98% | 1Ton | Henan Aochuang Chemical Co.,Ltd.
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2024-08-05 | Pentamethylbenzene
700-12-9
|
US $0.10 / KG | 1KG | 99.0% | 1000 tons | Shaanxi Dideu Medichem Co. Ltd | |
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2023-12-26 | Pentamethylbenzene
700-12-9
|
US $100.00-1.00 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd |
-
- Pentamethylbenzene
700-12-9
- US $0.00-0.00 / kg
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- Pentamethylbenzene
700-12-9
- US $0.10 / KG
- 99.0%
- Shaanxi Dideu Medichem Co. Ltd
-
- Pentamethylbenzene
700-12-9
- US $100.00-1.00 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
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