The 1(4H)-Pyridinepropanoicacid, a-amino-3-hydroxy-4-oxo-, (aS)-, with the CAS registry number 500-44-7 and EINECS registry number 207-905-1, has the systematic name of 3-(3-hydroxy-4-oxopyridin-1(4H)-yl)alanine. It is a kind of light tan to pink crystalline powder, and belongs to the product category of Alkaloids. And the molecular formula of the chemical is C₈H₁₀N₂O₄.

The characteristics of 1(4H)-Pyridinepropanoicacid, a-amino-3-hydroxy-4-oxo-, (aS)- are as followings: (1)ACD/LogP: -1.08; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -3.57; (4)ACD/LogD (pH 7.4): -3.71; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 6; (10)#H bond donors: 4; (11)#Freely Rotating Bonds: 5; (12)Polar Surface Area: 59.08 Å²; (13)Index of Refraction: 1.645; (14)Molar Refractivity: 46.56 cm³; (15)Molar Volume: 128.3 cm³; (16)Polarizability: 18.46×10^-24cm³; (17)Surface Tension: 85.8 dyne/cm; (18)Density: 1.544 g/cm³; (19)Flash Point: 213 °C; (20)Enthalpy of Vaporization: 78.95 kJ/mol; (21)Boiling Point: 428.6 °C at 760 mmHg; (22)Vapour Pressure: 3.84E-09 mmHg at 25°C. 

You should be cautious while dealing with this chemical. It is harmful by inhalation, in contact with skin and if swallowed. Therefore, you had better take the following instructions: Do not breathe dust, and wear suitable protective clothing.   

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: O=C(O)C(N)CN/1/C=C\C(=O)C(\O)=C\1
(2)InChI: InChI=1/C8H10N2O4/c9-5(8(13)14)3-10-2-1-6(11)7(12)4-10/h1-2,4-5,12H,3,9H2,(H,13,14)
(3)InChIKey: WZNJWVWKTVETCG-UHFFFAOYAK