Shanghai Nianxing Industrial Co., Ltd
China
Product Name: (Z)-4-Amino-4-oxobut-2-enoic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: (Z)-4-Amino-4-oxobut-2-enoic acid
Price: ￥188.0/5g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

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

557-24-4

557-24-4 structure

557-24-4 structure

Name: (Z)-4-Amino-4-oxobut-2-enoic acid
Chemical Name: maleamic acid
CAS Number: 557-24-4
Molecular Formula: C₄H₅NO₃
Molecular Weight: 115.08700
Create Date: 2018-02-11 08:00:00
Modify Date: 2025-08-24 22:20:17

Name	maleamic acid
Synonyms	Maleamic acid Aminomaleic acid Maleinamidsaeure Maleamidic acid 3c-carbamoyl-acrylic acid EINECS 209-163-4 Maleic monoamide MELEAMICACID maleinamic acid AURORA KA-4159 maleic acid monoamide N-[p-(Acetylmercuric)phenyl]maleamate Maleamate MFCD00082354 maleamic

Density	1.376g/cm3
Boiling Point	408.6ºC at 760mmHg
Melting Point	158-161 °C(lit.)
Molecular Formula	C₄H₅NO₃
Molecular Weight	115.08700
Flash Point	200.9ºC
Exact Mass	115.02700
PSA	80.39000
Index of Refraction	1.528
Stability	Stable, but light sensitive. Incompatible with strong oxidizing agents.

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
RIDADR	NONH for all modes of transport
WGK Germany	3
HS Code	2924199090

Precursor 10
108-31-6 107-95-9 39689-00-4 1137-41-3
640-68-6 122586-92-9 52411-33-3 63450-84-0
541-59-3 70-47-3
DownStream 10
34314-63-1 40594-97-6 110-17-8 541-59-3
36212-65-4 1631-28-3 7495-73-0 99071-97-3
61212-33-7 5330-39-2

HS Code	2924199090
Summary	2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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