Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 5-hydroxy-4,7-dimethyl-2H-chromen-2-one
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2H-1-Benzopyran-2-one, 4,7-dimethyl-5-hydroxy-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

6335-27-9

6335-27-9 structure

6335-27-9 structure

Name: 2H-1-Benzopyran-2-one, 4,7-dimethyl-5-hydroxy-
Chemical Name: 5-hydroxy-4,7-dimethylchromen-2-one
CAS Number: 6335-27-9
Molecular Formula: C₁₁H₁₀O₃
Molecular Weight: 190.19500
Create Date: 2017-04-10 13:50:34
Modify Date: 2025-08-23 17:30:43

Name	5-hydroxy-4,7-dimethylchromen-2-one
Synonyms	4,7-dimethyl-5-hydroxy-2H-1-benzopyran-2-one Coumarin,4,7-dimethyl-5-hydroxy 4,7-dimethyl-5-hydroxycoumarin 5-hydroxy-4,7-dimethyl-2H-chromen-2-one 5-hydroxy-4,7-dimethylcoumarin 5-hydroxy-4,7-dimethyl-6-nitrosocoumarin 5-hydroxy-4,7-dimethyl-2H-1-benzopyran-2-one 2H-1-Benzopyran-2-one,4,7-dimethyl-5-hydroxy

Density	1.269g/cm3
Boiling Point	371.3ºC at 760 mmHg
Molecular Formula	C₁₁H₁₀O₃
Molecular Weight	190.19500
Flash Point	167.2ºC
Exact Mass	190.06300
PSA	50.44000
LogP	2.11540
Index of Refraction	1.599

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GN6705000

CHEMICAL NAME :: Coumarin, 4,7-dimethyl-5-hydroxy-

CAS REGISTRY NUMBER :: 6335-27-9

BEILSTEIN REFERENCE NO. :: 0163053

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C11-H10-O3

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 :: >3200 mg/kg

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

REFERENCE :: MPHEAE Medicina et Pharmacologia Experimentalis. (Basel, Switzerland) V.12-17, 1965-67. For publisher information, see PHMGBN. Volume(issue)/page/year: 17,497,1967

HS Code	2932209090

Precursor 10
504-15-4 141-97-9 105-45-3 108-73-6
703-29-7 855286-94-1 3187-58-4 853928-08-2
2524-37-0 7664-38-2
DownStream 1
14002-98-3

HS Code	2932209090
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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