The Ethyl formate, with the CAS registry number 109-94-4 and EINECS registry number 203-721-0, is a kind of colourless liquid with an aromatic odour. It is moisture sensitive ester, and belongs to the following product categories: Organics; Analytical Chemistry; Solvents for HPLC & Spectrophotometry; Solvents for Spectrophotometry. And the molecular formula of this chemical is C₃H₆O₂.

The physical properties of Ethyl formate are as followings: (1)ACD/LogP: 0.30; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.3; (4)ACD/LogD (pH 7.4): 0.3; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 34.63; (8)ACD/KOC (pH 7.4): 34.63; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 26.3 Å²; (13)Index of Refraction: 1.356; (14)Molar Refractivity: 17.87 cm³; (15)Molar Volume: 81.7 cm³; (16)Polarizability: 7.08×10^-24cm³; (17)Surface Tension: 23.5 dyne/cm; (18)Density: 0.906 g/cm³; (19)Enthalpy of Vaporization: 29.91 kJ/mol; (20)Boiling Point: 54.7 °C at 760 mmHg; (21)Vapour Pressure: 242 mmHg at 25°C.

Preparation of Ethyl formate: It can start with esterification of formic acid and ethanol in the presence of catalyst sulphuric acid. And after neutralization and washing, you can get the product.
HCOOH + C₂H₅OH → HCOOC₂H₅ + H₂O

Uses of Ethyl formate: It is an important intermediates in organic synthesis. It is usually used as the solution for nitro acetyl cellulose and marlspum, and bactericide, fumigant & larvicide for food. It is also used as essence.
 
You should be cautious while dealing with this chemical. It is a kind of flammable chemical which irritates eyes and respiratory system, and it is also harmful by inhalation and if swallowed. Therefore, you had better take the following instructions: Keep container in a well-ventilated place; Keep away from sources of ignition - No smoking; Avoid contact with skin; In case of contact with eyes, rinse immediately with plenty of water and seek medical advice; Take precautionary measures against static discharges.

You can still convert the following datas into molecular structure:
(1)SMILES: O=COCC
(2)InChI: InChI=1/C3H6O2/c1-2-5-3-4/h3H,2H2,1H3
(3)InChIKey: WBJINCZRORDGAQ-UHFFFAOYAO

The toxicity data is as follows: