Fumaric acid was first prepared from Succinic acid.

The Fumaric acid, with the CAS registry number 110-17-8, is also known as (E)-2-Butenedioic acid; Butenedioic acid; (E)-1,2-Ethenedicarboxylic acid; TMEDA. It belongs to the product categories of Insect Platform;Multidrug Resistance;Phase II Enzyme Inducers;Phase II Enzyme InducersCancer Research.Its EINECS number is 203-743-0.This chemical's molecular formula is C₄H₄O₄ and molecular weight is 116.07. What's more,Its systematic name is Fumaric acid.It is a colorless crystalline solid,stable at room temperature.Decomposes at around 230 C.Incompatible with strong oxidizing agents, bases, reducing agents. Combustible.The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Combustible, though may be difficult to ignite. Used to make paints and plastics, in food processing and preservation, and for other uses.The Fumaric acid is irritating to the eyes .In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Inhalation of dust may cause respiratory irritation. Compound is non-toxic when ingested. Prolonged contact with eyes or skin may cause irritation.

Physical properties about Fumaric acid are:
(1)ACD/LogP: -0.008; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -2.73; (4)ACD/LogD (pH 7.4): -4.72; (5)ACD/BCF (pH 5.5): 1.00; (6)ACD/BCF (pH 7.4): 1.00; (7)ACD/KOC (pH 5.5): 1.00; (8)ACD/KOC (pH 7.4): 1.00; (9)#H bond acceptors: 4; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 2; (12)Index of Refraction: 1.526; (13)Molar Refractivity: 23.767 cm³; (14)Molar Volume: 77.429 cm³; (15)Surface Tension: 67.693000793457 dyne/cm; (16)Density: 1.499 g/cm³; (17)Flash Point: 182.981 °C; (18)Enthalpy of Vaporization: 65.985 kJ/mol; (19)Boiling Point: 355.482 °C at 760 mmHg; (20)Vapour Pressure: 0 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES:C(=C/C(=O)O)\C(=O)O;
(2)Std. InChI:InChI=1S/C4H4O4/c5-3(6)1-2-4(7)8/h1-2H,(H,5,6)(H,7,8)/b2-1+;
(3)Std. InChIKey:VZCYOOQTPOCHFL-OWOJBTEDSA-N;

The toxicity data of Fumaric acid as follows: