Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

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

66898-39-3

66898-39-3 structure

66898-39-3 structure

Name: 3-Ethylcoumarin
Chemical Name: 3-ethylchromen-2-one
CAS Number: 66898-39-3
Molecular Formula: C₁₁H₁₀O₂
Molecular Weight: 174.19600
Create Date: 2017-03-11 02:42:32
Modify Date: 2025-08-25 12:32:30

Name	3-ethylchromen-2-one
Synonyms	3-ethyl-chromen-2-one COUMARIN,3-ETHYL 3-Ethylcumarin 2H-1-Benzopyran-2-one,3-ethyl 3-Aethyl-cumarin 3-Ethylcoumarin 3-Ethyl-2H-1-benzopyran-2-one

Density	1.141g/cm3
Boiling Point	299ºC at 760 mmHg
Molecular Formula	C₁₁H₁₀O₂
Molecular Weight	174.19600
Flash Point	126.7ºC
Exact Mass	174.06800
PSA	30.21000
LogP	2.35540
Index of Refraction	1.556

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GN6768500

CHEMICAL NAME :: Coumarin, 3-ethyl-

CAS REGISTRY NUMBER :: 66898-39-3

BEILSTEIN REFERENCE NO. :: 0133158

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C11-H10-O2

MOLECULAR WEIGHT :: 174.21

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 :: 209 mg/kg

TOXIC EFFECTS :: 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

Precursor 10
90-02-8 123-73-9 55230-18-7 77202-48-3
89-95-2 141-75-3 77202-46-1 106-31-0
5663-67-2 10026-13-8
DownStream 1
69-72-7

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.