Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2H-1-Benzopyran-2-one,3-methyl-
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2H-1-Benzopyran-2-one,3-methyl-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

2445-82-1

2445-82-1 structure

2445-82-1 structure

Name: 2H-1-Benzopyran-2-one,3-methyl-
Chemical Name: 3-methyl-chromen-2-one
CAS Number: 2445-82-1
Molecular Formula: C₁₀H₈O₂
Molecular Weight: 160.16900
Create Date: 2018-04-06 08:00:00
Modify Date: 2025-09-11 18:48:09

Name	3-methyl-chromen-2-one
Synonyms	3-METHYL-1H-1-BENZOPYRAN-2-ONE 3-Methyl-2-oxochromene 3-methylchromen-2-one 3-methyl-2h-1-benzopyran-2-one 3-methylcoumarine 3-methylcoumarin 3-Methyl-cumarin 3-Methyl-2-oxo-2H-benzopyran 3-methyl-2h-1-benzopyran-2-on 3-methyl-2H-chromen-2-one 3-methyl-coumari

Density	1.185g/cm3
Boiling Point	292.5ºC at 760mmHg
Molecular Formula	C₁₀H₈O₂
Molecular Weight	160.16900
Flash Point	120.6ºC
Exact Mass	160.05200
PSA	30.21000
LogP	2.10140

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GN7790900

CHEMICAL NAME :: Coumarin, 3-methyl-

CAS REGISTRY NUMBER :: 2445-82-1

BEILSTEIN REFERENCE NO. :: 0122776

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C10-H8-O2

MOLECULAR WEIGHT :: 160.18

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 316 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

REFERENCE :: YKKZAJ Yakugaku Zasshi. Journal of Pharmacy. (Nippon Yakugakkai, 2-12-15 Shibuya, Shibuya-ku, Tokyo 150, Japan) No.1- 1881- Volume(issue)/page/year: 76,186,1956

HS Code	2932209090

Precursor 9
201230-82-2 66022-00-2 51593-69-2 57295-21-3
90-02-8 21382-82-1 107-02-8 123-62-6
106929-19-5
DownStream 8
69-72-7 87287-74-9 92736-13-5 92736-14-6
92736-15-7 92736-16-8 95306-75-5 62399-37-5

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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