Molekula
Ampicillin anhydrous
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
Ampicillin anhydrous is a broad-spectrum beta-lactam antibiotic used to treat bacterial infections by inhibiting cell wall synthesis. It is widely applied in pharmaceuticals, veterinary medicine, and microbiological research. This chemical has a CAS number of 69-53-4, molecular formula C16H19N3O4S, and a molecular weight of 349.40 g/mol. Store at 2 to 8°C, with a signal word of Danger due to its hazardous nature. Molekula supplies Ampicillin anhydrous 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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1 g — $34.00 per pack
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5 g — $99.70 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 |
| Water | 12.0% - 15.0% |
| Specific rotation | +280 to +305 |
| Identification | Conforms to reference |
| pH | 3.5-6.0 |
| Assay | 90.0%-100.5% |
| Sulphated Ash | <0.5% |
| Content | 96 - 102% |
| Residual Solvents | dichloromethane: ≤ 600ppm :triethylamine: ≤320ppm :acetone: ≤3000ppm |
| Total Impurities | ≤3.0% |
| Any impurity | penicilloic acid: ≤1.0%; D-phenylcyclopropylamine ≤0.8% |
| Any Unidentified Impurity | ≤0.25% |
| Dimer | Ampicillin oligomer 1(n=1):≤1.0% |
| Dimethylaniline | 20ppm |
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 |
|---|---|
| Appearance | White, crystalline powder |
| Melting Point | 202 °C, with decomposition |
| Water Solubility | 10.1 g/L at 21 °C |
| pKa | pKa = 2.65 |
Source: PubChem CID 6249 (HSDB, ChEMBL)
Identification
| Property | Value |
|---|---|
| SKU | 11160166 |
| CAS Number | 69-53-4 |
| IUPAC Name | (2S,5R,6R)-6-[[(2R)-2-amino-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid |
| EC Number | 200-709-7 |
| Molecular Formula | C16H19N3O4S |
| Molecular Weight | 349.40 |
| Exact Mass | 349.1096 |
| SMILES | CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)NC(=O)[C@@H](C3=CC=CC=C3)N)C(=O)O)C |
| InChIKey | AVKUERGKIZMTKX-NJBDSQKTSA-N |
| InChI | InChI=1S/C16H19N3O4S/c1-16(2)11(15(22)23)19-13(21)10(14(19)24-16)18-12(20)9(17)8-6-4-3-5-7-8/h3-7,9-11,14H,17H2,1-2H3,(H,18,20)(H,22,23)/t9-,10-,11+,14-/m1/s1 |
| PubChem CID | 6249 |
| REACH Code | Y110 |
| HTS Code | 29411010 |
| 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
- P261 Avoid breathing 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
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, 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
- Amfipen
- Aminobenzylpenicillin
- ampicillin
- Ampicillin acid
- Ampicilline
- anhydrous ampicillin
- Semicillin
- Synpenin
- Tokiocillin
- Ultrabion
Frequently asked questions
What is ampicillin anhydrous used for?
Ampicillin anhydrous is a broad-spectrum antibiotic used to treat bacterial infections, including respiratory, urinary, and gastrointestinal infections.
What is the chemical formula and molecular weight of ampicillin anhydrous?
The chemical formula is **C₁₆H₁₉N₃O₄S** with a molecular weight of **349.40 g/mol**.
How should ampicillin anhydrous be stored?
Store at **2–8°C** to maintain stability and potency.
What grades or purity levels of ampicillin anhydrous does Molekula supply?
Molekula supplies **pharmaceutical-grade (USP/EP/BP compliant) ampicillin anhydrous** for research and industrial applications.
Can Molekula supply ampicillin anhydrous in bulk quantities?
Yes, we offer bulk quantities of ampicillin anhydrous, with flexible packaging options (drums, bags, or custom solutions).
What documentation comes with an order of ampicillin anhydrous?
Each order includes a **Certificate of Analysis (CoA), Safety Data Sheet (SDS), 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.