Molekula
L-Threonine
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
L-Threonine is an essential amino acid critical for protein synthesis, collagen formation, and metabolic regulation, widely used in nutritional supplements, pharmaceuticals, and animal feed formulations. It appears as a white crystalline powder with a molecular formula of CH3CH(OH)CH(NH2)CO2H and a molecular weight of 119.12 g/mol. It is non-hazardous (no signal word) and stable at ambient storage conditions.
Molekula supplies L-Threonine at 99.0% - 101% purity in 100 g and 500 g packs, from £31.56 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
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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100 g — £26.30 per pack ex VAT · £31.56 inc. VAT
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500 g — £70.10 per pack ex VAT · £84.12 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 | White crystalline powder |
| Specific rotation | -27.5° to -29.0° |
| Heavy metals | ≤10ppm |
| Identification | Conforms to reference |
| pH | 5.2 - 6.5 |
| Loss on Drying | ≤0.20% |
| Chloride (Cl-) | ≤0.02% |
| Assay | 99.0% - 101% |
| Residue on Ignition | ≤0.10% |
| Transmittance | ≥98.0% |
| Iron (Fe) | ≤10ppm |
| Ammonium salt | ≤0.02% |
| Arsenic (As) | ≤10ppm |
| Sulphates (SO4)(2-) | ≤0.020% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless crystals |
| Melting Point | 256 °C (decomposes) |
| Water Solubility | 97 g/L at 25 °C |
| Vapour Pressure | 0.00000004 mmHg |
| pKa | pKa = 5.60 |
| log P (octanol/water) | -2.94 |
Source: PubChem CID 6288 (HSDB, Haz-Map, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 29578582 |
| CAS Number | 72-19-5 |
| IUPAC Name | (2S,3R)-2-amino-3-hydroxybutanoic acid |
| EC Number | 200-774-1 |
| Molecular Formula | CH3CH(OH)CH(NH2)CO2H |
| Molecular Weight | 119.12 |
| Exact Mass | 119.0582 |
| SMILES | C[C@H]([C@@H](C(=O)O)N)O |
| InChIKey | AYFVYJQAPQTCCC-GBXIJSLDSA-N |
| InChI | InChI=1S/C4H9NO3/c1-2(6)3(5)4(7)8/h2-3,6H,5H2,1H3,(H,7,8)/t2-,3+/m1/s1 |
| PubChem CID | 6288 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2922.50.40.00 |
| Tariff Code | 2922500025 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P403+233 Store in a well ventilated place. Keep container tightly closed
- P405 Store locked up
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- (2S,3R)-2-amino-3-hydroxybutanoic acid
- (2S,3R)-2-Amino-3-hydroxybutyric acid
- (S)-Threonine
- 2-amino-3-hydroxybutyric acid
- L-thr
- L-Threonin
- Threonin
- threonine
- Threoninum
- Treonina
Frequently asked questions
What is L-Threonine commonly used for?
L-Threonine is primarily used as a nutritional supplement in animal feed, human dietary supplements, and pharmaceuticals as an essential amino acid.
What is the chemical formula and molecular weight of L-Threonine?
The chemical formula is CH₃CH(OH)CH(NH₂)CO₂H, and the molecular weight is 119.12 g/mol.
How should L-Threonine be stored?
Store L-Threonine at ambient temperature in a dry, well-ventilated area, away from moisture and strong oxidizing agents.
What grades of L-Threonine does Molekula supply?
Molekula supplies L-Threonine as a white crystalline powder with an assay of 99.0% - 101%, a specific rotation of -27.5° to -29.0°, and defined impurity limits, including heavy metals ≤10ppm, arsenic ≤10ppm, iron ≤10ppm, chloride ≤0.02%, sulphates ≤0.020% and loss on drying ≤0.20%.
Can Molekula supply L-Threonine in bulk quantities?
Yes, Molekula can supply L-Threonine in bulk quantities, with packaging options ranging from 25 kg drums to larger containers.
What documentation comes with an order of L-Threonine?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
Where can I buy L-Threonine?
Directly from Molekula, which lists L-Threonine in 100 g and 500 g packs from £31.56 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.