Ethyl 2-mercaptopropionate
- CAS NO.：19788-49-9
- Empirical Formula: C5H10O2S
- Molecular Weight: 134.2
- MDL number: MFCD00040233
- EINECS: 243-314-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:53:40
What is Ethyl 2-mercaptopropionate?
Chemical properties
Colorless liquid
Chemical properties
Ethyl-2-mercaptopropionate has a sulfurous, fruity odor on dilution.
Definition
ChEBI: Ethyl 2-mercaptopropionate is a carboxylic ester.
Aroma threshold values
Detection: 1 ppb
Properties of Ethyl 2-mercaptopropionate
| Boiling point: | 40-41 °C1 mm Hg(lit.) |
| Density | 1.031 g/mL at 25 °C(lit.) |
| refractive index | n |
| FEMA | 3279 | ETHYL 2-MERCAPTOPROPIONATE |
| Flash point: | 137 °F |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 8.59±0.10(Predicted) |
| form | clear liquid |
| color | Colorless to Almost colorless |
| Odor | at 0.10 % in dipropylene glycol. sulfury meaty green onion |
| Sensitive | Air Sensitive |
| JECFA Number | 552 |
| BRN | 1071465 |
| CAS DataBase Reference | 19788-49-9(CAS DataBase Reference) |
| EPA Substance Registry System | Ethyl 2-mercaptopropionate (19788-49-9) |
Safety information for Ethyl 2-mercaptopropionate
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H332:Acute toxicity,inhalation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P370+P378:In case of fire: Use … for extinction. P405:Store locked up. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for Ethyl 2-mercaptopropionate
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