Molekula
L-(+)-Lactic acid (approx. 90%) pure USP, Food grade
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
L-(+)-Lactic acid (approx. 90%) pure USP, food grade is a chiral organic acid used in pharmaceuticals, food preservation, and biodegradable polymer production. It is a key intermediate in metabolic pathways and serves as a pH adjuster and preservative. CAS: 79-33-4, Molecular formula: C3H6O3, Molecular weight: 90.08 g/mol. Stored at ambient temperature. Signal word: Danger. Molekula supplies L-(+)-Lactic acid (approx. 90%) pure USP, food grade from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 L — £200.00 per pack ex VAT · £240.00 inc. VAT
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250 mL — £72.00 per pack ex VAT · £86.40 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless to slightly yellow, syrupy liquid |
| Heavy metals | ≤0.001% |
| Chloride (Cl-) | ≤0.1% |
| Sulphated Ash | ≤0.05% |
| Assay (Titration) | 88.0 - 92.0% |
| Iron (Fe) | ≤0.001% |
| Cyanide | ≤0.0005% |
| Lead (Pb) | ≤0.00005% |
| Mercury (Hg) | ≤0.0001% |
| Arsenic (As) | ≤0.0003% |
| Calcium (Ca) | ≤0.02% |
| Sulphates (SO4)(2-) | ≤0.02% |
| Stereochemical purity | ≥95% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 110 °C |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 16.8 °C |
| pKa | pKa = 3.861 |
Source: PubChem CID 107689 (Human Metabolome Database (HMDB), ChEMBL)
Identification
| Property | Value |
|---|---|
| SKU | 11816670 |
| CAS Number | 79-33-4 |
| IUPAC Name | (2S)-2-hydroxypropanoic acid |
| EC Number | 201-196-2 |
| Molecular Formula | C3H6O3 |
| Molecular Weight | 90.08 |
| Exact Mass | 90.0317 |
| SMILES | C[C@@H](C(=O)O)O |
| InChIKey | JVTAAEKCZFNVCJ-REOHCLBHSA-N |
| InChI | InChI=1S/C3H6O3/c1-2(4)3(5)6/h2,4H,1H3,(H,5,6)/t2-/m0/s1 |
| PubChem CID | 107689 |
| UN Number | UN3265 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2918.11.1000 |
| Tariff Code | 2918110080 |
Safety & GHS
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Corrosive
GHS05
Hazard statements
- EUH071 Corrosive to the respiratory tract
- H290 May be corrosive to metals
- H303 May be harmful if swallowed
- H314 (sub cat. 1C) Causes severe skin burns and eye damage
- H318 Causes serious eye damage
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (+)-Lactic acid
- (2S)-2-hydroxypropanoic acid
- (S)-2-Hydroxypropanoic acid
- (S)-2-Hydroxypropionic acid
- (S)-Lactic acid
- L-Lactic acid
- Lactic acid, L-
- Paralactic acid
- Sarcolactic acid
- Tisulac
Frequently asked questions
What is L-(+)-Lactic acid used for?
It is used in pharmaceuticals, food preservation, and as a building block in biodegradable polymers like PLA.
What is the chemical formula and molecular weight?
The formula is C3H6O3 with a molecular weight of 90.08 g/mol.
How should L-(+)-Lactic acid be stored?
Store at ambient temperature.
What grade is available?
Available in USP and Food Grade, suitable for pharmaceutical and food applications.
Can Molekula supply it in bulk?
Yes, Molekula can supply L-(+)-Lactic acid in bulk quantities—please contact sales for details.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.