Ethylparaben
- CAS No.
- 120-47-8
- Chemical Name:
- Ethylparaben
- Synonyms
- Ethyl;ETHYL 4-HYDROXYBENZOATE;ETHYL P-HYDROXYBENZOATE;Sobrol A;Solbrol A;P-HYDROXYBENZOIC ACID ETHYL ESTER;Nipazin A;ethyl butex;Bonomold OE;ETHYL PARASEPT
- CBNumber:
- CB5119772
- Molecular Formula:
- C9H10O3
- Molecular Weight:
- 166.17
- MDL Number:
- MFCD00002353
- MOL File:
- 120-47-8.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 114-117 °C (lit.) |
|---|---|
| Boiling point | 297-298 °C (lit.) |
| Density | 1.1708 (rough estimate) |
| vapor pressure | 0.00012 hPa (25 °C) |
| refractive index | 1.5286 (estimate) |
| FLAVIS Number | 09.367 | Ethyl 4-hydroxybenzoate |
| Flash point | 297-298°C |
| storage temp. | 2-8°C |
| solubility | Very slightly soluble in water, freely soluble in ethanol (96 per cent) and in methanol. |
| form | Crystalline Powder |
| pka | 8.31±0.13(Predicted) |
| color | White |
| PH | 4.5-5.5 (H2O, 20°C) (saturated solution) |
| Odor | at 100.00%. mild phenolic |
| Water Solubility | Slightly soluble in water. |
| Merck | 14,3837 |
| BRN | 1101972 |
| Henry's Law Constant | 2.1×103 mol/(m3Pa) at 25℃, HSDB (2015) |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, strong bases. |
| Cosmetics Ingredients Functions |
PRESERVATIVE FRAGRANCE |
| Cosmetic Ingredient Review (CIR) | Ethylparaben (120-47-8) |
| InChI | 1S/C9H10O3/c1-2-12-9(11)7-3-5-8(10)6-4-7/h3-6,10H,2H2,1H3 |
| InChIKey | NUVBSKCKDOMJSU-UHFFFAOYSA-N |
| SMILES | CCOC(=O)c1ccc(O)cc1 |
| LogP | 2.470 |
| FDA 21 CFR | 175.105 |
| Indirect Additives used in Food Contact Substances | ETHYLPARABEN |
| CAS DataBase Reference | 120-47-8(CAS DataBase Reference) |
| EWG's Food Scores | 3-4 |
| FDA UNII | 14255EXE39 |
| ATC code | D01AE10 |
| NIST Chemistry Reference | Ethylparaben(120-47-8) |
| EPA Substance Registry System | Ethylparaben (120-47-8) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H303-H315-H317-H319 | |||||||||
| Precautionary statements | P261-P264-P272-P280-P302+P352+P333+P313+P363-P305+P351+P338+P337+P313-P501 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-24/25 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | DH2190000 | |||||||||
| Autoignition Temperature | 495 °C | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29182930 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazardous Substances Data | 120-47-8(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
Ethylparaben price More Price(102)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | E2425000 | Ethyl parahydroxybenzoate European Pharmacopoeia (EP) Reference Standard | 120-47-8 | 150 mg | $241 | 2026-04-30 | Buy |
| Sigma-Aldrich | 111988 | Ethyl 4-hydroxybenzoate ReagentPlus , 99% | 120-47-8 | 5g | $23.3 | 2026-04-30 | Buy |
| Sigma-Aldrich | 111988 | Ethyl 4-hydroxybenzoate ReagentPlus , 99% | 120-47-8 | 100g | $39.9 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1.00887 | Ethyl 4-hydroxybenzoate EMPROVE? ESSENTIAL Ph Eur,BP,JP,NF | 120-47-8 | 5kg | $453 | 2022-05-15 | Buy |
| Sigma-Aldrich | 1.00887 | Ethyl 4-hydroxybenzoate EMPROVE? ESSENTIAL Ph Eur,BP,JP,NF | 120-47-8 | 25kg | $1508 | 2022-05-15 | Buy |
Ethylparaben Chemical Properties, Uses, Production
Chemical Properties
Ethylparaben occurs as a white, odorless or almost odorless, crystalline powder.
Uses
Ethylparaben is mainly used as antiseptics in cosmetics, food and medicine. It is also can be used as feed preservatives and antiseptic for bacteria.
Ethylparaben is a preservative that is used in the formulation of cosmetics and personal care products in order to extend the shelf-life by preventing microbial contamination. In most formulations, parabens are used at very low levels ranging from 0.01 to 0.3%.
Ethylparaben, a novel sorbent for solid-phase extraction, was used to study its retention property. It has high extraction efficiency towards the compounds tested owing to the electrostatic interaction, hydrophobic interaction and hydrogen bonding.
Definition
ChEBI: Ethylparaben is an ethyl ester resulting from the formal condensation of the carboxy group of 4-hydroxybenzoic acid with ethanol, It has a role as an antimicrobial food preservative, an antifungal agent, a plant metabolite and a phytoestrogen. It is a paraben and an ethyl ester.
Production Methods
Ethylparaben is prepared by the esterification of p-hydroxybenzoic acid with ethanol (95%).
Synthesis Reference(s)
The Journal of Organic Chemistry, 39, p. 3343, 1974 DOI: 10.1021/jo00937a007
Pharmaceutical Applications
Ethylparaben is widely used as an antimicrobial preservative in
cosmetics,food products, and pharmaceutical formulations.
It may be used either alone or in combination with other paraben
esters or with other antimicrobial agents. In cosmetics it is one of the
most frequently used preservatives.
The parabens are effective over a wide pH range and have a
broad spectrum of antimicrobial activity, although they are most
effective against yeasts and molds.
Owing to the poor solubility of the parabens, paraben salts,
particularly the sodium salt, are frequently used. However, this may
cause the pH of poorly buffered formulations to become more
alkaline.
Safety
Ethylparaben and other parabens are widely used as antimicrobial
preservatives in cosmetics, food products, and oral and topical
pharmaceutical formulations.
Systemically, no adverse reactions to parabens have been
reported, although they have been associated with hypersensitivity
reactions. Parabens, in vivo, have also been reported to exhibit
estrogenic responses in fish.(10) The WHO has set an estimated total
acceptable daily intake for methyl-, ethyl-, and propylparabens at
up to 10 mg/kg body-weight.
LD50 (mouse, IP): 0.52 g/kg
LD50 (mouse, oral): 3.0 g/kg
storage
Aqueous ethylparaben solutions at pH 3–6 can be sterilized by
autoclaving, without decomposition. At pH 3–6, aqueous
solutions are stable (less than 10% decomposition) for up to about
4 years at room temperature, while solutions at pH 8 or above are
subject to rapid hydrolysis (10% or more after about 60 days at
room temperature).
Ethylparaben should be stored in a well-closed container in a
cool, dry place.
Incompatibilities
The antimicrobial properties of ethylparaben are considerably
reduced in the presence of nonionic surfactants as a result of
micellization. Absorption of ethylparaben by plastics has not been
reported, although it appears probable given the behavior of other
parabens. Ethylparaben is coabsorbed on silica in the presence of
ethoxylated phenols. Yellow iron oxide, ultramarine blue, and
aluminum silicate extensively absorb ethylparaben in simple
aqueous systems, thus reducing preservative efficacy.
Ethylparaben is discolored in the presence of iron and is subject
to hydrolysis by weak alkalis and strong acids.
Regulatory Status
Accepted as a food additive in Europe. Included in the FDA Inactive Ingredients Database (oral, otic, and topical preparations). Included in nonparenteral medicines licensed in the UK. Included in the Canadian List of Acceptable Non-medicinal Ingredients.
Ethylparaben Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| NANJING CHEMFIRST CO.,LTD. | 025-87780427 15850602248 | info@chemfs.com | China | 16 | 58 |
| Shandong Vantage Specialty Chemicals Biotechnology Co., Ltd. | 13396369453 18678026865 | sdfantai@163.com | China | 904 | 58 |
| ShangHai Anpel Co, Ltd. | 18502138905 | shanpel@anpel.com.cn | China | 9604 | 58 |
| Jiangsu Duoyang Bioengineering Technology Co., Ltd | 15161148838 | 2234255617@qq.com | China | 1056 | 58 |
| Wuhan Biocar Pharmacy CO.,Ltd. | 86-027-86589876 15377519203 | 2094286327@qq.com | China | 548 | 58 |
| Henan Jiqian Biotechnology Co., Ltd | 13676987627 | 1411258629@qq.com | China | 647 | 58 |
| Shaanxi Coal Chemical Industry Technology Research Institute Co., Ltd. | 029-81772051 15388612296 | 549981688@qq.com | China | 25 | 58 |
| Shanghai Yanze Chemical Co., Ltd. | 15345144255 19975051755 | 260924549@qq.com | China | 2979 | 58 |
| Tianjin Zhongxin Chemtech Co., Ltd. | 022-66880623 | sales@tjzxchem.com | China | 612 | 60 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
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View Latest Price from Ethylparaben manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-18 | Ethylparaben
120-47-8
|
1kg/Bag | ≥98% | 50 T/Month | Hebei Qujie Technology Co., Ltd. | ||
 |
2026-09-18 | Ethylparaben
120-47-8
|
$1.00 | 1KG | 99.0～100.5%,BP2018/USP40 | 20Tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2026-08-20 | Ethylparaben
120-47-8
|
$29.00 | 99.95% | 10g | TargetMol Chemicals Inc. |
-
- Ethylparaben
120-47-8
- $0.00
- ≥98%
- Hebei Qujie Technology Co., Ltd.
-
- Ethylparaben
120-47-8
- $1.00
- 99.0～100.5%,BP2018/USP40
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Ethylparaben
120-47-8
- $29.00
- 99.95%
- TargetMol Chemicals Inc.
