Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 5-Chloro-2-methylbenzoxazole
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Purity: 98.0%
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19219-99-9

19219-99-9 structure

19219-99-9 structure

Name: 5-Chloro-2-methylbenzo[d]oxazole
Chemical Name: 5-chloro-2-methyl-1,3-benzoxazole
CAS Number: 19219-99-9
Molecular Formula: C₈H₆ClNO
Molecular Weight: 167.592
Create Date: 2018-07-04 19:33:41
Modify Date: 2026-07-01 20:29:11

Name	5-chloro-2-methyl-1,3-benzoxazole
Synonyms	Chloro-2-methylbenzoxazole 2-METHY-5-CHLOROBENZOXAZOLE 5-CHLORO-2-METHYLBENZOXAZOLE FOR SYNTHES 5-chloro-2-methyl-benzooxazole 2-METHYL-5-CHLORO BENZOXAZOLE Benzoxazole, 5-chloro-2-methyl 5-Chloro-2-methyl-1,3-benzoxazole EINECS 242-888-4 5-Chloro-2-methylbenzoxazole> 5-CHLORO-2-METHYLBENZO[D]OXAZOLE 2-Methyl-5-chlorobenzoxazole 5-Chlor-2-methyl-benzoxazol 5 CHLORO 2-METHYL BENZOXAZOL 5-Chloro-2-methylbenzooxazole 5-Chloro-2-methylbenzoxazole 2-Methyl-5-chloro 5-CHLORO-2-METHYLBENZOXAZOLE BENZOXAZOLE,5-CHLORO-2-METHYL 2-methyl-5-chlor bezoxazole 7-Chloro-2-Mercato Benzoxazole MFCD00022850

Density	1.3±0.1 g/cm3
Boiling Point	241.6±13.0 °C at 760 mmHg
Melting Point	55-57 °C(lit.)
Molecular Formula	C₈H₆ClNO
Molecular Weight	167.592
Flash Point	99.9±19.8 °C
Exact Mass	167.013794
PSA	26.03000
LogP	2.42
Vapour Pressure	0.1±0.5 mmHg at 25°C
Index of Refraction	1.608

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DM4790000

CHEMICAL NAME :: Benzoxazole, 5-chloro-2-methyl-

CAS REGISTRY NUMBER :: 19219-99-9

BEILSTEIN REFERENCE NO. :: 0120800

LAST UPDATED :: 199701

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C8-H6-Cl-N-O

MOLECULAR WEIGHT :: 167.60

WISWESSER LINE NOTATION :: T56 BN DOJ C1 HG

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 :: >1 gm/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),339,1964

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >2 gm/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),337,1964

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1550 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),337,1964

Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S27-S36/37/39-S45-S36/39
RIDADR	UN 1759 8/PG 2
WGK Germany	3
RTECS	DM4790000
Packaging Group	III
Hazard Class	8
HS Code	29349990

Precursor 9
78-39-7 95-85-2 87974-51-4 26488-93-7
28443-50-7 144-55-8 1445-45-0 89-64-5
108-24-7
DownStream 7
95-21-6 1351403-33-2 61931-68-8 72745-76-7
5676-57-3 13452-16-9 88787-40-0

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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