Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,3-Dimethyl-5-tert-butylbenzene
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

98-19-1

98-19-1 structure

98-19-1 structure

Name: 5-tert-Butyl-m-xylene
Chemical Name: 1-Tert-Butyl-3,5-Dimethylbenzene
CAS Number: 98-19-1
Molecular Formula: C₁₂H₁₈
Molecular Weight: 162.271
Catalog: API Respiratory medication Asthma
Create Date: 2018-03-09 08:00:00
Modify Date: 2026-07-03 10:35:33

Name	1-Tert-Butyl-3,5-Dimethylbenzene
Synonyms	Xylometazoline Hydrochloride Impurity D 1-(Tert-butyl)-3,5-dimethylbenzene (Xylometazoline Impurity) 5-TERT-BUTYL-M-XYLENE t-Butyl-m-xylene SYM-TERT-BUTYL-M-XYLENE 1,3-Dimethyl-5-(2-methyl-2-propanyl)benzene 5-butyl-xylene tert-Butyl-m-xylene 5-T-BUTYL-1,3-XYLENE 1-tert-Butyl-3,5-dimethylbenzene 3,5-Dimethyl-tert-butylbenzen Lowinox TBMX 1-tert-butl-3,5-dimethylbenzene Xylometazoline Impurity 4（Xylometazoline Impurity D） 1-(1,1-dimethylethyl)-3,5-dimethyl-benzen TERT-BUTYLMETA-XYLENE 1-(1,1-dimethylethyl)-3,5-dimethyl-Benzene 1-T-Butyl-3,5-Dimethyl-Benzene 1-(1,1-Dimethylethyl)-3,5-dimethylbenzene 5-tert-Butyl-m-xylene > 1,3-DIMETHYL-5-(T-BUTYL)BENZENE 5-tert-butyl-m-xylen Xylometazoline hydrochloride impurity B 5-tert-Butyl-1,3-Dimethylbenzene benzene,1,3-dimethyl-5-(1,1-dimethylethyl) 1-(Tert-butyl)-3,5-dimethylben 1-(1,1-Dimethylethyl)-3,5-dimethylb Xylazoline Impurity D 1,3-dimethyl-5-(1,1-dimethylethyl)benzene Butyl-m-xylene 1-tert-Butyl-3,5-dimethylbezene MFCD00008832 5-tert-Butyl-m-xylene in n-hexane Benzene, 1,3-dimethyl-5-(1,1-dimethylethyl) EINECS 202-647-6 Xylometazoline Impurity D 5-tert-butl-3,5-diMethylbenzene 5-tert-butyl-1,3-dimethyl-benzen 1,3-dimethyl-5-(1,1-dimethylethyl)-benzen 1-TERT-BUTYL-3,5-DIMETHYLBENZENE 4-tert-Butyl-2,6-dimethylbenzene Benzene, 5-tert-butyl-1,3-dimethyl 1,3-DIMETHYL-5-TERT-BUTYLBENZENE m-Xylene, 5-tert-butyl 5-tert-Butyl-m-xylene, sym.-tert-Butyl-m-xylene High purity 1,3-Dimethyl-5-tert-butylbenzene -1 /manufacturer/low price/high quality/in stock

Density	0.9±0.1 g/cm3
Boiling Point	207.9±20.0 °C at 760 mmHg
Melting Point	-18 °C
Molecular Formula	C₁₂H₁₈
Molecular Weight	162.271
Flash Point	72.2±0.0 °C
Exact Mass	162.140854
LogP	4.83
Vapour Pressure	0.3±0.2 mmHg at 25°C
Index of Refraction	1.487

CHEMICAL IDENTIFICATION

RTECS NUMBER :: ZE3900000

CHEMICAL NAME :: m-Xylene, 5-tert-butyl-

CAS REGISTRY NUMBER :: 98-19-1

BEILSTEIN REFERENCE NO. :: 1853314

LAST UPDATED :: 199709

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C12-H18

MOLECULAR WEIGHT :: 162.30

WISWESSER LINE NOTATION :: 1X1&1&R C1 E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 28ZRAQ "Toxicology and Biochemistry of Aromatic Hydrocarbons," Gerarde, H., New York, Elsevier, 1960 Volume(issue)/page/year: -,58,1960

Hazard Codes	Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
WGK Germany	3
RTECS	ZE3900000
HS Code	2902909090

Precursor 9
108-38-3 75-65-0 556-96-7 677-22-5
115-11-7 5345-05-1 57834-94-3 507-20-0
75-28-5
DownStream 10
554-95-0 5122-20-3 499-06-9 42014-60-8
443-88-9 2040-10-0 19387-83-8 65338-71-8
81-14-1 81-15-2

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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