Molekula
L-Threonine
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-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 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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100 g — $49.80 per pack
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500 g — $133.10 per pack
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.
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 **pharmaceutical-grade (USP/EP/JP) and food-grade L-Threonine** depending on customer requirements.
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.
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.