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

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Benzoxazole
Price: ￥438.0/100g ￥158.0/25g
Purity: 98.0%
Stocking Period: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

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

273-53-0

273-53-0 structure

273-53-0 structure

Name: Benzoxazole
Chemical Name: 1,3-benzoxazole
CAS Number: 273-53-0
Molecular Formula: C₇H₅NO
Molecular Weight: 119.121
Create Date: 2018-08-21 23:05:40
Modify Date: 2025-08-20 19:28:36

Name	1,3-benzoxazole
Synonyms	1,3-Benzoxazole benzoxazoline Benzoxazole benzoxazol Benzo[d]oxazole 1-Oxa-3-aza-1H-indene USAF EK-5017 1-Oxa-3-azaindene 1,4-benzoxazole Benzooxazole EINECS 205-988-9 benz<b>oxazole MFCD00005765

Density	1.2±0.1 g/cm3
Boiling Point	182.5±9.0 °C at 760 mmHg
Melting Point	27-30 °C(lit.)
Molecular Formula	C₇H₅NO
Molecular Weight	119.121
Flash Point	65.3±14.6 °C
Exact Mass	119.037117
PSA	26.03000
LogP	1.59
Vapour Pressure	1.1±0.3 mmHg at 25°C
Index of Refraction	1.609
Water Solubility	Insoluble

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DM4375000

CHEMICAL NAME :: Benzoxazole

CAS REGISTRY NUMBER :: 273-53-0

LAST UPDATED :: 199701

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C7-H5-N-O

MOLECULAR WEIGHT :: 119.13

WISWESSER LINE NOTATION :: T56 BN DOJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 750 mg/kg

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

REFERENCE :: MDCHAG Medicinal Chemistry: A Series of Monographs. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1963- Volume(issue)/page/year: 4(1),336,1964

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

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

REFERENCE :: MDCHAG Medicinal Chemistry: A Series of Monographs. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1963- Volume(issue)/page/year: 4(1),336,1964

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 179 mg/kg

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

REFERENCE :: JPETAB Journal of Pharmacology and Experimental Therapeutics. (Williams & Wilkins Co., 428 E. Preston St., Baltimore, MD 21202) V.1- 1909/10- Volume(issue)/page/year: 105,486,1952

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H302-H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	F:Flammable;Xn:Harmful;
Risk Phrases	R11;R22;R36/37/38
Safety Phrases	S26-S36/37/39-S37/39
RIDADR	1325
WGK Germany	3
RTECS	DM4375000
Packaging Group	III
Hazard Class	4.1
HS Code	2934999090

Precursor 8
95-55-6 4819-77-6 90-02-8 122-51-0
13673-62-6 149-73-5 93-55-0 2382-96-9
DownStream 10
10450-11-0 59-49-4 78213-03-3 106050-82-2
106050-81-1 111836-60-3 4411-80-7 64819-72-3
4570-41-6 2843-27-8

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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