Introduction：Basic information about Ethyl L(-)-lactate CAS 687-47-8, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
Ethyl L(-)-lactate Basic information
| Product Name: | Ethyl L(-)-lactate |
| Synonyms: | L-Ethyl Lactate;ETHYL LACTATE >=98% FCC;ETHYL LACTATE 98+% NATURAL FCC;Propanoic acid, 2-hydroxy-, ethyl ester, (2S)- (9CI);Ethyl L(-)-lactate, pract., 90%;Propanoic acid, 2-hydroxy-, ethyl ester, (2S)-;Ethyl L-lactate 99%;LACTICACID,ETHYLESTER,(S)- |
| CAS: | 687-47-8 |
| MF: | C5H10O3 |
| MW: | 118.13 |
| EINECS: | 211-694-1 |
| Product Categories: | Chiral Building Blocks;Esters (Chiral);Synthetic Organic Chemistry;ACETYLGROUP |
| Mol File: | 687-47-8.mol |
|
Ethyl L(-)-lactate Chemical Properties
| Melting point | −26 °C(lit.) |
| alpha | -10 º (neat) |
| Boiling point | 154 °C(lit.) |
| density | 1.034 g/mL at 20 °C(lit.) |
| vapor density | 4.1 (vs air) |
| vapor pressure | 2 mm Hg ( 20 °C) |
| refractive index | n20/D 1.4130(lit.) |
| FEMA | 2440 | ETHYL LACTATE |
| Fp | 54.6±6.4 °C |
| storage temp. | Store below +30°C. |
| solubility | Chloroform (Soluble), Ethyl Acetate (Slightly), Methanol (Slightly) |
| pka | 13.21±0.20(Predicted) |
| form | Liquid |
| color | Clear colorless to pale yellow |
| PH | 4 (50g/l, H2O, 20℃) |
| Odor | fruit-like odor |
| Optical Rotation | [α]20/D 10.5±1°, neat |
| explosive limit | 1.5-16.4%(V) |
| Water Solubility | SOLUBLE |
| Merck | 14,3817 |
| BRN | 1720839 |
| InChI | 1S/C5H10O3/c1-3-8-5(7)4(2)6/h4,6H,3H2,1-2H3/t4-/m0/s1 |
| InChIKey | LZCLXQDLBQLTDK-BYPYZUCNSA-N |
| SMILES | C[C@H](O)C(OCC)=O |
| LogP | 0.31 at 20℃ |
| CAS DataBase Reference | 687-47-8(CAS DataBase Reference) |
| NIST Chemistry Reference | Propanoic acid, 2-hydroxy-, ethyl ester, (S)-(687-47-8) |
| EPA Substance Registry System | Propanoic acid, 2-hydroxy-, ethyl ester, (2S)- (687-47-8) |
Safety Information
| Hazard Codes | Xi,F |
| Risk Statements | 10-37-41 |
| Safety Statements | 24-26-39 |
| RIDADR | UN 1192 3/PG 3 |
| WGK Germany | 1 |
| RTECS | OD5075000 |
| Autoignition Temperature | 752 °F |
| Hazard Note | Irritant/Flammable |
| TSCA | TSCA listed |
| HazardClass | 3 |
| PackingGroup | III |
| HS Code | 29181100 |
| Storage Class | 3 - Flammable liquids |
| Hazard Classifications | Eye Dam. 1
Flam. Liq. 3
STOT SE 3 |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
Ethyl L(-)-lactate Usage And Synthesis
| Chemical Properties | clear liquid |
| Uses | (-)-Ethyl L-Lactate is a naturally occuring chemical compound that is often used as an industrial solvent in chemical reactions. |
| Uses | Ethyl L-lactate is used in the preparation of food additives, aryl aldimines, fragrances and in pharmaceutical preparations. It can be considered as a green solvent in chemical industries due to its biodegradable nature. As a solvent, it used in the production of nitrocellulose, cellulose acetate and cellulose ethers. |
| Definition | ChEBI: The (2S)-enantiomer of ethyl lactate. |
| General Description | Ethyl?lactate is an economically viable?green solvent used in organic synthesis. It is generally employed in organic reactions like multi-component reactions, cycloaddition reaction, asymmetric induction, photochemical synthesis, and ligand-free coupling reactions, etc. |
| Flammability and Explosibility | Non flammable |
Ethyl L(-)-lactate Preparation Products And Raw materials
| Raw materials | Ethanol-->Lactic acid-->Holmium Oxide-->Ethyl lactate-->Fatty acid (C10～C20)-->(R)-(-)-ALPHA-(TRIFLUOROMETHYL)BENZYL ALCOHOL-->(S)-(+)-ALPHA-(TRIFLUOROMETHYL)BENZYL ALCOHOL-->(+)-Ethyl D-lactate-->Trifluoroacetophenone-->Ethyl pyruvate |
| Preparation Products | Lofexidine-->(R)-(-)-2-Chloropropan-1-ol-->Tetrahydrofuran-->2-(TETRAHYDRO-PYRAN-2-YLOXY)-PROPIONIC ACID ETHYL ESTER-->Propanoic acid, 2-hydroxy-, hydrazide, (2S)- |
