The 2-Butenoicacid, 3-amino-, methyl ester, with the CAS registry number 14205-39-1 and EINECS registry number 238-056-5, has the systematic name and IUPAC name of methyl 3-aminobut-2-enoate. It is a kind of yellowish-white crystals, and belongs to the product category of API intermediates. It is also hygroscopic, and insoluble in water. And the molecular formula of this chemical is C₅H₉NO₂.

The physical properties of 2-Butenoicacid, 3-amino-, methyl ester are as following: (1)ACD/LogP: -0.14; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -0.34; (4)ACD/LogD (pH 7.4): -0.14; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 12.64; (8)ACD/KOC (pH 7.4): 19.83; (9)#H bond acceptors: 3; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 29.54 Å²; (13)Index of Refraction: 1.457; (14)Molar Refractivity: 30.42 cm³; (15)Molar Volume: 111.6 cm³; (16)Polarizability: 12.06×10^-24cm³; (17)Surface Tension: 33.3 dyne/cm; (18)Density: 1.031 g/cm³; (19)Flash Point: 65.3 °C; (20)Enthalpy of Vaporization: 43.03 kJ/mol; (21)Boiling Point: 194.1 °C at 760 mmHg; (22)Vapour Pressure: 0.449 mmHg at 25°C.

Uses of 2-Butenoicacid, 3-amino-, methyl ester: It can react with pyridine-2-carbaldehyde and acetoacetic acid methyl ester to produce 2',6'-dimethyl-1',4'-dihydro-[2,4']bipyridinyl-3',5'-dicarboxylic acid dimethyl ester. This reaction will need solvent ethanol. The reaction time is 16 hours with heating, and the yield is about 77%.

You should be cautious while dealing with this chemical. It irritates eyes, respiratory system and skin, and it is also harmful if swallowed. Therefore, you had better take the following instructions: Wear suitable gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(OC)C=C(N)C
(2)InChI: InChI=1/C5H9NO2/c1-4(6)3-5(7)8-2/h3H,6H2,1-2H3
(3)InChIKey: XKORCTIIRYKLLG-UHFFFAOYAV

The toxicity data is as follows: