Molekula
Tryptone
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
Tryptone is a hydrolyzed protein derived from casein, commonly used as a nitrogen source in microbiological growth media. It supports the growth of a wide range of microorganisms in laboratory and industrial applications. Available in powder form, it is stable at ambient temperatures. CAS: 91079-40-2.
Molekula supplies Tryptone in 100 g and 500 g packs, from £37.08 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.
Often bought together
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 — £30.90 per pack ex VAT · £37.08 inc. VAT
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500 g — £103.30 per pack ex VAT · £123.96 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 | light yellow/ light brown powder or granules |
| pH | 6.5 - 7.5 |
| Loss on Drying | <5.0% |
| Residue on Ignition | <15% |
| Amino nitrogen | 5.7 - 6.8% |
| Total nitrogen (N) | 11 - 13% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
For research use only. Not for human use.
Identification
| Property | Value |
|---|---|
| SKU | 17417732 |
| CAS Number | 91079-40-2 |
| Molecular Formula | N/A |
| Molecular Weight | N/A |
| REACH Code | Y113 |
| HTS Code | 3504.00.5080 |
| Tariff Code | 3504009099 |
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, 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
No alternate names recorded for this product.
Frequently asked questions
What is Tryptone used for?
Tryptone is primarily used as a nutrient source in microbiological growth media, such as Luria-Bertani (LB) broth, to support bacterial growth.
What is the formula and molecular weight of Tryptone?
The exact chemical formula and molecular weight of Tryptone are not defined, as it is a complex mixture of peptides and amino acids derived from casein digestion.
How should Tryptone be stored?
Tryptone should be stored at ambient temperature, protected from moisture and light, and used before the expiration date.
What grade of Tryptone is available?
Molekula's Tryptone is supplied to a specification covering appearance (light yellow to light brown powder or granules), pH 6.5 - 7.5, loss on drying below 5.0%, residue on ignition below 15%, amino nitrogen 5.7 - 6.8% and total nitrogen 11 - 13%. Please contact our team for details on grade.
Can Molekula supply Tryptone in bulk?
Yes, Molekula can supply Tryptone in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a Tryptone order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS), with additional documentation available upon request.
Where can I buy Tryptone?
Directly from Molekula, which lists Tryptone in 100 g and 500 g packs from £37.08 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.