Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4-Oxopent-2-enoic 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-ACETYLACRYLIC ACID
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: 4-Oxopent-2-enoic acid
Price: ￥Inquiry/100mg ￥Inquiry/1g ￥Inquiry/250mg ￥Inquiry/5g
Purity: 95.0%
Stocking Period: Inquiry
Contact: Xiyao Wang
Email: 3623107365@qq.com

4743-82-2

4743-82-2 structure

4743-82-2 structure

Name: 4-Oxopent-2-enoic acid
Chemical Name: 3-acetylacrylic acid
CAS Number: 4743-82-2
Molecular Formula: C₅H₆O₃
Molecular Weight: 114.09900
Create Date: 2018-05-29 08:00:00
Modify Date: 2025-08-22 13:21:31

Name	3-acetylacrylic acid
Synonyms	4-ketopentenicacid 4-Ketopentenoic acid 3-Acetylacrylic acid Acetacrylsaeure 4-OXOPENT-2-ENOIC ACID EINECS 225-256-2 dehydrolevulinic acid 3-acetyl acrylic acid ACETYL ACRYLIC ACID MFCD00014016 4-Oxo-2-pentenoic acid 4-oxo-2-pentenoicaci

Density	1.183g/cm3
Boiling Point	269.7ºC at 760 mmHg
Melting Point	123-124ºC
Molecular Formula	C₅H₆O₃
Molecular Weight	114.09900
Flash Point	131.2ºC
Exact Mass	114.03200
PSA	54.37000
LogP	0.21620
Index of Refraction	1.469

CHEMICAL IDENTIFICATION

RTECS NUMBER :: SB3360000

CHEMICAL NAME :: 2-Pentenoic acid, 4-oxo-

CAS REGISTRY NUMBER :: 4743-82-2

BEILSTEIN REFERENCE NO. :: 1745249

LAST UPDATED :: 199712

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C5-H6-O3

MOLECULAR WEIGHT :: 114.11

WISWESSER LINE NOTATION :: QV1U1V1

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 :: 115 mg/kg

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

REFERENCE :: ZolH## Personal Communication from H. Zollner, Institut fur Biochemie, Der Universitat, Gras, Oct. 23, 1975 Volume(issue)/page/year: 23OCT1975

Hazard Codes	Xi
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
HS Code	2918300090

Precursor 9
62557-43-1 79865-08-0 123-76-2 533-73-3
64-19-7 108-28-1 1552-33-6 119-33-5
620-02-0
DownStream 9
4188-88-9 123-76-2 109-52-4 539-88-8
110-54-3 56-89-3 108-28-1 30625-58-2
5451-09-2

HS Code	2918300090
Summary	2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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