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| | p-Hydroxybenzoic acid ethyl ester sodium salt Basic information |
| | p-Hydroxybenzoic acid ethyl ester sodium salt Chemical Properties |
| Melting point | >115°C(free ester) | | density | 1.34[at 20℃] | | Fp | 121°C | | storage temp. | Store at +15°C to +25°C. | | solubility | White or almost white, hygroscopic, crystalline powder. | | pka | 8.4[at 20 ℃] | | form | Solid | | color | White to Off-White | | PH | 10 (1g/l, H2O, 20°C) | | Water Solubility | 1000g/L at 23℃ | | Boiling point | 297°C (1013 hPa)(free ester),(decomposition) | | Major Application | pharmaceutical small molecule | | Cosmetics Ingredients Functions | PRESERVATIVE | | InChI | InChI=1S/C9H10O3.Na.H/c1-2-12-9(11)7-3-5-8(10)6-4-7;;/h3-6,10H,2H2,1H3;; | | InChIKey | YQUPWTOMYMRYQW-UHFFFAOYSA-N | | SMILES | C(C1C=CC(O)=CC=1)(=O)OCC.[NaH] | | LogP | -0.14 at 23℃ | | CAS DataBase Reference | 35285-68-8(CAS DataBase Reference) |
| WGK Germany | WGK 1 slightly water endangering | | HS Code | 2918 29 00 | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Eye Irrit. 2 | | Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
| | p-Hydroxybenzoic acid ethyl ester sodium salt Usage And Synthesis |
| Chemical Properties | White or almost white, hygroscopic, crystalline powder. | | Uses | Ethyl 4-hydroxybenzoate has antimicrobial characteristics and is used as preservative in pharmaceutical formulations and cosmetics. It can be combined with other parabens like methyl 4-hydroxybenzoate or propyl 4-hydroxybenzoate. The sodium salt provides improved solubility in water compared to standard ethyl 4-hydroxybenzoate. | | Flammability and Explosibility | Non flammable | | Contact allergens | This substance is one of the parabens family. Parabens are esters formed by p-hydroxybenzoic acid
and an alcohol. They are largely used as biocides in
cosmetics and toiletries, medicaments, or food. They
have synergistic power with other biocides. Parabens
can induce allergic contact dermatitis, mainly in
chronic dermatitis and wounded skin. |
| | p-Hydroxybenzoic acid ethyl ester sodium salt Preparation Products And Raw materials |
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