The Sodium propionate is an organic compound with the formula C₃H₅NaO₂. The IUPAC name of this chemical is sodium propanoate. With the CAS registry number 137-40-6, it is also named as propanoic acid, sodium salt (1:1). The product's category is Food & Flavor Additives. Besides, it is a white powder, which should be stored in a closed and dry place. It is used as a food preservative and is represented by the food labeling E number E281 in Europe. It is used primarily as a mold inhibitor in bakery products.

Physical properties about Sodium propionate are: (1)ACD/LogP: 0.25; (2)ACD/LogD (pH 5.5): -0.54; (3)ACD/LogD (pH 7.4): -2.33; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 5.3; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 2; (9)#H bond donors: 1; (10)#Freely Rotating Bonds: 1; (11)Polar Surface Area: 37.3 Å²; (12)Flash Point: 57.7 °C; (13)Enthalpy of Vaporization: 40.08 kJ/mol; (14)Boiling Point: 141.7 °C at 760 mmHg; (15)Vapour Pressure: 4.23 mmHg at 25°C.

Preparation: this chemical can be prepared by sodium carbonate and acid.

Uses of Sodium propionate: it can be used to produce propionic acid anhydride. The yield is about 95%.

When you are using this chemical, please be cautious about it as the following:
It is harmful in contact with skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Besides, this chemical is irritating to eyes, respiratory system and skin. When you are using it, wear suitable gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: [Na+].[O-]C(=O)CC
(2)InChI: InChI=1/C3H6O2.Na/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1
(3)InChIKey: JXKPEJDQGNYQSM-REWHXWOFAH
(4)Std. InChI: InChI=1S/C3H6O2.Na/c1-2-3(4)5;/h2H2,1H3,(H,4,5);/q;+1/p-1
(5)Std. InChIKey: JXKPEJDQGNYQSM-UHFFFAOYSA-M

The toxicity data is as follows: