o-Cymene

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Names

[ CAS No. ]:
527-84-4

[ Name ]:
o-Cymene

[Synonym ]:
ortho-Cymene
1-methyl-2-isopropylbenzene
2-Methylisopropylbenzene
Benzene, 1-methyl-2-(1-methylethyl)-
Benzene, 1-methyl-2- (1-methylethyl)-
o-Cymol
iso-propyltoluene
MFCD00008888
Cymene
1-Isopropyl-2-methylbenzene
O-CYMENE
CYMENE,ORTHO
EINECS 208-426-0
2-Isopropyltoluene
o-Isopropyltoluene
1-Methyl-2-isopropylbenzol
1-methyl-2-(propan-2-yl)benzene

Chemical & Physical Properties

[ Density]:
0.9±0.1 g/cm3

[ Boiling Point ]:
178.1±0.0 °C at 760 mmHg

[ Melting Point ]:
−72-−71 °C(lit.)

[ Molecular Formula ]:
C₁₀H₁₄

[ Molecular Weight ]:
134.218

[ Flash Point ]:
50.6±0.0 °C

[ Exact Mass ]:
134.109543

[ LogP ]:
4.02

[ Vapour Pressure ]:
1.4±0.1 mmHg at 25°C

[ Index of Refraction ]:
1.493

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DA6127300

CHEMICAL NAME :: Benzene, 1-methyl-2-(1-methylethyl)-

CAS REGISTRY NUMBER :: 527-84-4

BEILSTEIN REFERENCE NO. :: 1850838

LAST UPDATED :: 199710

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: C10-H14

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2130 mg/kg

TOXIC EFFECTS :: Cardiac - other changes Lungs, Thorax, or Respiration - other changes

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(3),49,1985

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2024 mg/kg

TOXIC EFFECTS :: Cardiac - other changes Lungs, Thorax, or Respiration - other changes

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(3),49,1985

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 10300 mg/m3

TOXIC EFFECTS :: Cardiac - other changes Lungs, Thorax, or Respiration - other changes

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(3),49,1985

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1315 mg/kg

TOXIC EFFECTS :: Cardiac - other changes Lungs, Thorax, or Respiration - other changes

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 29(3),49,1985

Safety Information

[ Risk Phrases ]:
R10

[ Safety Phrases ]:
S23-S24/25

[ RIDADR ]:
UN 2046 3/PG 3

[ WGK Germany ]:
2

[ RTECS ]:
DA6127300

[ Packaging Group ]:
III

[ Hazard Class ]:
3.2

[ HS Code ]:
2902909090

Precursor & DownStream

Precursor

2-methyl-1-propan-2-ylcyclohexa-2,5-diene-1-carboxylic acid
o-Isopropenyltoluene
Toluene
2-Bromopropane
2-Chloropropane
2-(2-methylphenyl)propan-2-ol
cyclopropane
Propane Residual Solvent Standard
Pinane
propene

DownStream

1,2-Dibromo-4-methyl-5-nitrobenzene
2-(2-methylphenyl)propan-2-ol
(2-ISOPROPYLPHENYL)METHANOL
Benzopinacole
2-methyl-1,1-diphenyl-2-(o-tolyl)propan-1-ol
2-(2-isopropylphenyl)-1,1-diphenylethanol
2,3,4,5,6-PENTABROMOTOLUENE
1,2,3-tribromo-5-isopropyl-4-methyl-benzene
2-Nitrotoluene

Customs

[ HS Code ]: 2902909090

[ Summary ]:
2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Related Compounds

o-Cymene-7-carbonitrile (6CI,7CI)
o-CYMENE-4-CARBOXYLIC ACID,5-HYDROXY
o-(3-Amino-4-sodiooxybenzoyl)benzoic acid sodium salt
o-(α-Methyl-β-chlor-vinyl)-cis-zimtsaeureamid
O,O-diphenyl {[(benzyloxy)carbonyl]amino}(phenyl)methylphosphonate
O-cyclohexyl-O'-(3'-azido-3'-deoxythymidin-5'-yl) phosphonate
5-methyl-N-{[1-(thiophen-3-yl)cyclopentyl]methyl}-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine
3-([1,3]Thiazolo[4,5-c]pyridin-2-ylamino)-1-thiophen-2-ylpropan-1-ol
6-(Trifluoromethyl)-1,2-dihydrospiro[indole-3,4'-oxane] hydrochloride
N1,N1-Dimethyl-N3-(thietan-3-yl)cyclopentane-1,3-diamine
3-({1-[(2-Fluorophenyl)methyl]piperidin-4-yl}methyl)-3,4-dihydroquinazolin-4-one
3-Fluoro-4-({4-[(4-oxo-3,4-dihydroquinazolin-3-yl)methyl]piperidin-1-yl}methyl)benzonitrile
1-[(1-methyl-1H-imidazol-4-yl)sulfonyl]-4-[3-(pyridin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane
1-[(1-methyl-1H-imidazol-2-yl)sulfonyl]-4-[3-(pyridin-3-yl)-[1,2,4]triazolo[4,3-b]pyridazin-6-yl]-1,4-diazepane
N-(1-(4,5-dimethyl-6-oxo-1,6-dihydropyrimidin-2-yl)-3-(thiophen-2-yl)-1H-pyrazol-5-yl)-2-(methylthio)benzamide
N-[2-methoxy-2-(thiophen-3-yl)ethyl]thieno[3,2-d]pyrimidin-4-amine

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