Lactic acid
Also known as: 1H-Pyrrolo[2,3-b]pyridine-3-acetic acid, 5-bromo-a-oxo-, 2-Hydroxy-2-methylacetic acid, 2-Hydroxypropionic acid, 2-hydroxypropanoic acid, DL-ALPHA-HYDROXYPROPIONIC ACID, DL-Lactic acid, DL-Lactic acid, ACS reagent, 85+%, EINECS 200-018-0, FEMA 2611, LACTIC ACID, 85% REAGENT (ACS), LACTICACID,RACEMIC,USP, Lactic, MFCD00004520, dl-lactic acid, acs
Lactic acid (CAS 50-21-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H6O3 and a molecular weight of 90.078 g/mol. Key properties include a melting point of 18ºC, a boiling point of 227.6±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 109.9±16.3 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation and H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 50-21-5
- Jingsj CID
- J-25772-3
- Molecular Formula
- C3H6O3
- Molecular Weight
- 90.078 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 18ºC |
|---|---|
| Boiling Point | 227.6±0.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 109.9±16.3 °C |
| Exact Mass | 90.031693 |
| PSA | 57.53000 |
| LogP | -0.70 |
| Vapor Pressure | 0.0±1.0 mmHg at 25°C |
| Refractive Index | 1.451 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
Activity & Biological Data
| Additional Information | [1]. Brooks GA. Lactate: link between glycolytic and oxidative metabolism. Sports Med. 2007;37(4-5):341-3. [2]. Fuller BM, et al. Lactate as a hemodynamic marker in the critically ill. Curr Opin Crit Care. 2012 Jun;18(3):267-72. |
|---|
Customs & Trade Information
| HS Code | 2918110000 |
|---|---|
| Summary | 2918110000. lactic acid, its salts and esters. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Lactic acid?
The CAS number of Lactic acid is 50-21-5.
What are the molecular formula and molecular weight of Lactic acid?
Lactic acid has molecular formula C3H6O3 and molecular weight 90.078 g/mol.
Is Lactic acid hazardous?
Lactic acid has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H318 — Causes serious eye damage.
What are the upstream and downstream products of Lactic acid?
For Lactic acid, Upstream Products: Sodium pyruvate; Downstream Products: (R)-(+)-2-Chloropropionic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Lactic acid (CAS 50-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25772-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.