Molekula
Natamycin (Pimaricin)
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
Natamycin (Pimaricin) is a natural antifungal agent used to inhibit mold and yeast in food products, particularly in cheese, baked goods, and cured meats. It is a polyene macrolide antibiotic produced by Streptomyces natalensis. Available in powder form with an assay of ≥95.0% (dried basis), it has a CAS number of 7681-93-8, molecular formula C33H47NO13, and molecular weight of 665.73 g/mol. Store at 2 to 8 °C.
Molekula supplies Natamycin (Pimaricin) at ≥ 95.0% purity (dried basis) in 1 g packs, from £93.24 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 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
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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1 g — £77.70 per pack ex VAT · £93.24 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 |
| Water | 6.0 - 9.0% |
| Identification | Conforms to reference |
| pH | 5.0 - 7.5 |
| Specification | Conforms to USP Specification |
| Residue on Ignition | ≤ 0.5% |
| Lead (Pb) | ≤ 1mg/kg |
| Arsenic (As) | ≤ 1mg/kg |
| Assay (dried basis) | ≥ 95.0% |
| Total Aerobic Microbial Count | ≤ 100cfu/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 10237077 |
| CAS Number | 7681-93-8 |
| IUPAC Name | (1R,3S,5R,7R,8E,12R,14E,16E,18E,20E,22R,24S,25R,26S)-22-[(2R,3S,4S,5S,6R)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-1,3,26-trihydroxy-12-methyl-10-oxo-6,11,28-trioxatricyclo[22.3.1.05,7]octacosa-8,14,16,18,20-pentaene-25-carboxylic acid |
| EC Number | 231-683-5 |
| Molecular Formula | C33H47NO13 |
| Molecular Weight | 665.73 |
| Exact Mass | 665.3047 |
| SMILES | C[C@@H]1C/C=C/C=C/C=C/C=C/[C@@H](C[C@H]2[C@@H]([C@H](C[C@](O2)(C[C@H](C[C@@H]3[C@H](O3)/C=C/C(=O)O1)O)O)O)C(=O)O)O[C@H]4[C@H]([C@H]([C@@H]([C@H](O4)C)O)N)O |
| InChIKey | NCXMLFZGDNKEPB-FFPOYIOWSA-N |
| InChI | InChI=1S/C33H47NO13/c1-18-10-8-6-4-3-5-7-9-11-21(45-32-30(39)28(34)29(38)19(2)44-32)15-25-27(31(40)41)22(36)17-33(42,47-25)16-20(35)14-24-23(46-24)12-13-26(37)43-18/h3-9,11-13,18-25,27-30,32,35-36,38-39,42H,10,14-17,34H2,1-2H3,(H,40,41)/b4-3+,7-5+,8-6+,11-9+,13-12+/t18-,19-,20+,21+,22+,23-,24-,25+,27-,28+,29-,30+,32+,33-/m1/s1 |
| PubChem CID | 5284447 |
| REACH Code | Y113 |
| Tariff Code | 29419000 |
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
- Delvocid
- Mycophyt
- Myprozine
- Natacyn
- Natamicina
- NATAMYCIN
- Natamycine
- Pimaracin
- pimaricin
- Synogil
Frequently asked questions
What is Natamycin (Pimaricin) used for?
Natamycin is primarily used as an antifungal agent in food preservation, particularly in cheeses, baked goods, and other perishable products, to inhibit mold and yeast growth.
What is the chemical formula and molecular weight of Natamycin?
The chemical formula of Natamycin is C33H47NO13, and its molecular weight is 665.73 g/mol.
How should Natamycin be stored?
Natamycin should be stored at temperatures between 2 to 8 °C, protected from light and moisture.
What grade of Natamycin does Molekula supply?
Molekula supplies Natamycin that conforms to USP Specification.
Can Molekula supply Natamycin in bulk quantities?
Yes, Molekula can supply Natamycin in bulk quantities; please contact our sales team for specific volume inquiries.
What documentation comes with a Natamycin order?
Each order includes a Certificate of Analysis (CoA) and, upon request, a Certificate of Compliance (CoC) and safety data sheet (SDS).
Where can I buy Natamycin (Pimaricin)?
Directly from Molekula, which lists Natamycin (Pimaricin) in 1 g packs from £93.24 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.