Molekula
Procaine penicillin G
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
Procaine penicillin G is a natural penicillin antibiotic, the salt formed between penicillin G (benzylpenicillin) and procaine, used primarily for intramuscular injection in veterinary and human medicine to treat bacterial infections. It is supplied as a white to off-white crystalline powder. CAS 6130-64-9, molecular formula C16H18N2O4S · C13H20N2O2 · H2O, molecular weight 588.7 g/mol. Store between 2–8°C. Hazard classification: Danger (signal word).
Molekula supplies Procaine penicillin G in 500 mg and 1 g packs, from £148.08 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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500 mg — £123.40 per pack ex VAT · £148.08 inc. VAT
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1 g — £201.70 per pack ex VAT · £242.04 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 or almost white crystalline powder |
| Water | 2.8% ~ 4.2% |
| Impurity A | ≤0.024% |
| Identification | IR spectrum complies with that of reference standard |
| pH | (50mg/15 H2O) 5.0 ~ 7.5 |
| Impurity D | ≤0.2% |
| Solubility | Slightly soluble inw ater, sparingly soluble in ethanol 96% |
| Assay | Procaine(HPLC): 39%~42%(calculated with reference to the anhydrous substances) |
| Residual Solvents | n-Butanol ≤5000ppm / Ethyl acetate ≤5000ppm |
| Sterility | Meets the requirements |
| Bacterial endotoxins | ≤0.1IU/mg |
| Any other impurity | ≤0.2% |
| Impurity F | ≤0.5% |
| Impurity E | ≤0.2% |
| Impurity G | ≤0.5% |
| Impurity H | ≤0.5% |
| Impurity I | ≤0.5% |
| Impurity J | ≤0.5% |
| Impurity B (sum of isomers) | ≤0.4% |
| Impurity C (sum of epimers) | ≤0.4% |
| Specified impurity I | ≤0.2% |
| Total impurity 1 | ≤2.0% |
| Total impurity 2 | ≤2.0% |
| Procaine:benzylpenicillin | 96% ~ 102%(calculated with reference to the anhydrous substances) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90027229 |
| CAS Number | 6130-64-9 |
| IUPAC Name | 2-(diethylamino)ethyl 4-aminobenzoate;(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid;hydrate |
| Molecular Formula | C16H18N2O4S1 · C13H20N2O2 · H2O |
| Molecular Weight | 588.7 g/mol |
| Exact Mass | 588.2618 |
| SMILES | CCN(CC)CCOC(=O)C1=CC=C(C=C1)N.CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)NC(=O)CC3=CC=CC=C3)C(=O)O)C.O |
| InChIKey | KZDCMKVLEYCGQX-UDPGNSCCSA-N |
| InChI | InChI=1S/C16H18N2O4S.C13H20N2O2.H2O/c1-16(2)12(15(21)22)18-13(20)11(14(18)23-16)17-10(19)8-9-6-4-3-5-7-9;1-3-15(4-2)9-10-17-13(16)11-5-7-12(14)8-6-11;/h3-7,11-12,14H,8H2,1-2H3,(H,17,19)(H,21,22);5-8H,3-4,9-10,14H2,1-2H3;1H2/t11-,12+,14-;;/m1../s1 |
| PubChem CID | 22502 |
| REACH Code | Y110 |
| HTS Code | 29411020 |
| Tariff Code | 2941100000 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H317 May cause an allergic skin reaction
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
Precautionary statements
- P233 Keep container tightly closed
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P284 Wear respiratory protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P501 Dispose of contents/container to an approved waste disposal plant
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
No alternate names recorded for this product.
Frequently asked questions
What is procaine penicillin G used for?
Procaine penicillin G is primarily used as an antibiotic for treating bacterial infections, particularly in veterinary medicine for livestock and companion animals, and historically in human medicine for conditions like syphilis and streptococcal infections.
What is the chemical formula and molecular weight of procaine penicillin G?
The formula is C₁₆H₁₈N₂O₄S · C₁₃H₂₀N₂O₂ · H₂O, and the molecular weight is 588.7 g/mol.
How should procaine penicillin G be stored?
Store at 2 to 8°C in a dry, well-ventilated area, away from direct sunlight and incompatible substances.
What grades or purities of procaine penicillin G does Molekula supply?
Molekula supplies procaine penicillin G to a defined specification covering procaine assay (39%–42%, HPLC, anhydrous basis), water content (2.8%–4.2%), individual and total impurity limits, residual solvents, sterility and bacterial endotoxins (≤0.1 IU/mg), for research, veterinary, and industrial applications.
Can Molekula supply procaine penicillin G in bulk quantities?
Yes, Molekula can provide procaine penicillin G in bulk, with quantities tailored to your specific requirements—contact us for pricing and lead times.
What documentation comes with a procaine penicillin G order?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation confirming purity, potency, and compliance with regulatory standards.
Where can I buy Procaine penicillin G?
Directly from Molekula, which lists Procaine penicillin G in 500 mg and 1 g packs from £148.08 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.