Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Methoxy-6-methylpyran-2-one
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Purity: 98.0%
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672-89-9

672-89-9 structure

672-89-9 structure

Name: 4-Methoxy-6-methyl-2H-pyran-2-one
Chemical Name: 4-Methoxy-6-Methyl-2H-Pyran-2-One
CAS Number: 672-89-9
Molecular Formula: C₇H₈O₃
Molecular Weight: 140.13700
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyran compound
Create Date: 2019-02-16 08:33:16
Modify Date: 2026-07-11 11:08:58

Name	4-Methoxy-6-Methyl-2H-Pyran-2-One
Synonyms	4-methoxy-6-methyl-pyran-2-one Methyltriacetolacton 4-methoxy-6-methyl-2-pyranone EINECS 211-600-9 Methyltriacetolactone 2H-Pyran-2-one, 4-methoxy-6-methyl MFCD00006640 4-METHOXY-6-METHYL-2H-PYRAN-2-ONE 4-methoxy-6-methylpyran-2-one 4-methoxy-6-methyl-2h-pyran-2-on 4-Methoxy-6-methyl-2-pyrone 4-Methoxy-6-methyl-2H-pyran-2-one ISO 9001：2015 REACH 2H-Pyran-2-one, 6-methyl-4-methoxy

Density	1.14g/cm3
Boiling Point	280.3ºC at 760 mmHg
Melting Point	83-86ºC
Molecular Formula	C₇H₈O₃
Molecular Weight	140.13700
Flash Point	112.6ºC
Exact Mass	140.04700
PSA	39.44000
LogP	0.95680
Appearance	Solid
Index of Refraction	1.492
Water Solubility	Poorly soluble in water.

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UQ1225500

CHEMICAL NAME :: 2H-Pyran-2-one, 4-methoxy-6-methyl-

CAS REGISTRY NUMBER :: 672-89-9

BEILSTEIN REFERENCE NO. :: 0115970

LAST UPDATED :: 199612

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C7-H8-O3

MOLECULAR WEIGHT :: 140.15

WISWESSER LINE NOTATION :: T6OVJ DO1 F1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 820 mg/kg

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

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 19,617,1969

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 650 mg/kg

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

REFERENCE :: ARZNAD Arzneimittel-Forschung. Drug Research. (Editio Cantor Verlag, Postfach 1255, W-7960 Aulendorf, Fed. Rep. Ger.) V.1- 1951- Volume(issue)/page/year: 19,617,1969

WGK Germany	3
RTECS	UQ1225500
HS Code	2932999099

Precursor 10
675-10-5 77-78-1 512-56-1 80-48-8
67-64-1 186581-53-3 67-56-1 926-66-9
4188-63-0 771-03-9
DownStream 9
500-62-9 35598-05-1 108593-44-8 4179-19-5
2743-14-8 158205-36-8 84016-84-2 3155-51-9
3155-52-0

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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