Molekula
L-allo-Isoleucine
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-allo-Isoleucine is a non-proteinogenic amino acid used in peptide synthesis and biochemical research. It serves as a building block for studying protein structure and function. CAS: 1509-34-8, Molecular Formula: C6H13NO2, Molecular Weight: 131.17 g/mol. Store at 2 to 8 °C.
Molekula supplies L-allo-Isoleucine at ≥99.0% purity (TLC) in 25 g packs, from £9,774.00 inc. VAT. It is made or sourced to order. Every batch ships with a certificate of analysis, and safety data sheets are available in 5 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
On backorder — expected to ship by 5 December 2026
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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25 g — £8,145.00 per pack ex VAT · £9,774.00 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 to off white powder |
| Specific rotation | 37.0 - 40.0° |
| Solubility | (Colour) Colourless to faint yellow. (Turbidity) Clear to slight Hazy |
| Carbon (C) | 54.4 - 55.5% |
| Purity (TLC) | ≥99.0% |
| Identification (IR) | Conforms to structure |
| Nitrogen (N) | 10.4 - 11.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 60 - 64 °C |
Source: PubChem CID 99288 (Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 90034039 |
| CAS Number | 1509-34-8 |
| IUPAC Name | (2S,3R)-2-amino-3-methylpentanoic acid |
| EC Number | 221-464-2 |
| Molecular Formula | C6H13NO2 |
| Molecular Weight | 131.17 |
| Exact Mass | 131.0946 |
| SMILES | CC[C@@H](C)[C@@H](C(=O)O)N |
| InChIKey | AGPKZVBTJJNPAG-UHNVWZDZSA-N |
| InChI | InChI=1S/C6H13NO2/c1-3-4(2)5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t4-,5+/m1/s1 |
| PubChem CID | 99288 |
| REACH Code | Y113 |
| HTS Code | 29224949 |
| Tariff Code | 2922498590 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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-methylpentanoic acid
- (3R)-LS-isoleucine
- allo-L-Isoleucine
- Alloisoleucine
- Alloisoleucine, DL-
- Alloisoleucine, L-
- DL-Allo-isoleucine
- H-Allo-Ile-OH
- L-Norvaline, 3-methyl-, threo-
- threo-L-Isoleucine
Frequently asked questions
What is L-allo-Isoleucine used for?
L-allo-Isoleucine is primarily used as a building block in peptide synthesis and as a research reagent in biochemical studies.
What is the chemical formula and molecular weight of L-allo-Isoleucine?
The formula is C6H13NO2 with a molecular weight of 131.17 g/mol.
How should L-allo-Isoleucine be stored?
It should be stored at 2 to 8 °C to maintain stability and prevent degradation.
What grade is available for L-allo-Isoleucine?
Molekula supplies L-allo-Isoleucine with a purity of ≥99.0% (TLC), conforming to specifications for appearance, specific rotation, solubility, elemental analysis and IR identification.
Can Molekula supply L-allo-Isoleucine in bulk?
Yes, Molekula can supply L-allo-Isoleucine in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of L-allo-Isoleucine?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Where can I buy L-allo-Isoleucine?
Directly from Molekula, which lists L-allo-Isoleucine in 25 g packs from £9,774.00 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.