Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Benzene,1-methyl-2-(1-methylethyl)-
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Henan Tianfu Chemical Co., Ltd.
China
Product Name: 527-84-4
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Purity: 99.0%
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527-84-4

527-84-4 structure

527-84-4 structure

Name: o-Cymene
Chemical Name: 1-methyl-2-propan-2-ylbenzene
CAS Number: 527-84-4
Molecular Formula: C₁₀H₁₄
Molecular Weight: 134.218
Create Date: 2018-03-22 08:00:00
Modify Date: 2026-06-30 17:07:07

Name	1-methyl-2-propan-2-ylbenzene
Synonyms	2-Isopropyl-1-methylbenzene (o-Isopropyltoluene) in n-hexane 1-methyl-2-(1-methylethyl)-benzen 1-methyl-2-isopropylbenzol 2-ISOPROPYLTOLUENE O-CYMENE ISO 9001：2015 REACH 1-(1-methylethyl)-2-methylbenzene 2-METHYLISOPROPYLBENZENE o-Cymol iso-propyltoluene MFCD00008888 2-Isopropyl-1-methylbenzene (o-Isopropyltoluene) Cymene 1-Isopropyl-2-methylbenzene O-CYMENE o-Isopropyltoluene 1-Methyl-2-isopropylbenzol 1-Isopropyl-2-methylbenzene, 2-Isopropyltoluene o-CyMene 1-methyl-2-(propan-2-yl)benzene Benzene,1-methyl-2-(1-meth 1-METHYL-2-ISO-PROPYLBENZENE ortho-Cymene Cymene, ortho Thymol Impurity 23 o-Cymene,1-Isopropyl-2-methylbenzene, 2-Isopropyltoluene 1-methyl-2-isopropylbenzene 2-Methylisopropylbenzene CA14465480 2-Isopropyltoluene 1-Methyl-2-(1-methylethyl)-benzene 1-methyl,2-n-isopropylbenzene 1-methyl-2-propan-2-yl-benzene 1-ISOPROPYL-2-METHYLBENZENE 2-Isopropyltoluene 2-Methylisopropylbenzene CYMENE,ORTHO EINECS 208-426-0 1-methyl-2-(1-methylethyl)benzene Benzene, 1-methyl-2-(1-methylethyl) 2-Isopropyltoluene 2-isopropylmethylbenzene

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

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

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 10
31689-42-6 7399-49-7 108-88-3 75-26-3
75-29-6 7572-79-4 75-19-4 74-98-6
4755-33-3 187737-37-7
DownStream 9
101580-70-5 7572-79-4 21190-34-1 464-72-2
118893-14-4 118893-13-3 87-83-2 854403-37-5
88-72-2

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%

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