Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2H-1-Benzopyran-2-one,6-chloro-
Price: Check
Purity: 95.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2H-1-Benzopyran-2-one,6-chloro-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Shanghai Amole Biotechnology Co., Ltd.
China
Product Name: 2H-1-Benzopyran-2-one,6-chloro-
Price: ￥Inquiry/100mg ￥Inquiry/1g ￥Inquiry/250mg ￥Inquiry/5g
Purity: 95.0%
Stocking Period: Inquiry
Contact: Xiyao Wang
Email: 3623107365@qq.com

2051-59-4

2051-59-4 structure

2051-59-4 structure

Name: 2H-1-Benzopyran-2-one,6-chloro-
Chemical Name: 2H-1-Benzopyran-2-one,6-chloro
CAS Number: 2051-59-4
Molecular Formula: C₉H₅ClO₂
Molecular Weight: 180.58800
Create Date: 2018-02-23 08:00:00
Modify Date: 2025-08-25 17:53:52

Name	2H-1-Benzopyran-2-one,6-chloro
Synonyms	6-chloro-2H-1-benzopyran-2-one 6-Chlor-cumarin 6-chloro-2H-chromen-2-one 7-chloro coumarin 6-chloro-chromen-2-one 6-chloro-coumarin CHLOROCOUMARIN

Density	1.399g/cm3
Boiling Point	334.9ºC at 760 mmHg
Molecular Formula	C₉H₅ClO₂
Molecular Weight	180.58800
Flash Point	181.9ºC
Exact Mass	179.99800
PSA	30.21000
LogP	2.44640
Vapour Pressure	0.000124mmHg at 25°C
Index of Refraction	1.608

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GN4950000

CHEMICAL NAME :: Coumarin, 6-chloro-

CAS REGISTRY NUMBER :: 2051-59-4

BEILSTEIN REFERENCE NO. :: 0128035

LAST UPDATED :: 199612

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C9-H5-Cl-O2

MOLECULAR WEIGHT :: 180.59

WISWESSER LINE NOTATION :: T66 BOVJ HG

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 :: 355 mg/kg

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

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: 83,1124,1963

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 163 mg/kg

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

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: 83,1124,1963 *** REVIEWS *** TOXICOLOGY REVIEW PMDCAY Progress in Medical Chemistry. (Elsevier Science Pub. Co., Inc., 52 Vanderbilt Ave., New York, NY 10017) V.1- 1961- Volume(issue)/page/year: 10,85,1974

HS Code	2932209090

Precursor 7
635-93-8 927-80-0 4279-77-0 115560-50-4
7035-09-8 106-48-9 115560-38-8
DownStream 4
321-14-2 88039-96-7 80055-54-5 80055-85-2

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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