Molekula
6-Aminopenicillanic acid
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
6-Aminopenicillanic acid is a key intermediate in the synthesis of semi-synthetic penicillins. It serves as the core structure for producing antibiotics such as ampicillin and amoxicillin. Available with CAS number 551-16-6, its molecular formula is C8H12N2O3S and molecular weight is 216.26 g/mol. Store at 2 to 8 °C. Hazard classification includes signal word Danger. Molekula supplies 6-Aminopenicillanic acid 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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100 g — £73.20 per pack ex VAT · £87.84 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 | Off white/ beige powder |
| Identification | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| pKa | pKa = 2.3 |
Source: PubChem CID 11082 (ChEMBL)
Identification
| Property | Value |
|---|---|
| SKU | 13631841 |
| CAS Number | 551-16-6 |
| IUPAC Name | (2S,5R,6R)-6-amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid |
| EC Number | 208-993-4 |
| Molecular Formula | C8H12N2O3S |
| Molecular Weight | 216.26 |
| Exact Mass | 216.0569 |
| SMILES | CC1([C@@H](N2[C@H](S1)[C@@H](C2=O)N)C(=O)O)C |
| InChIKey | NGHVIOIJCVXTGV-ALEPSDHESA-N |
| InChI | InChI=1S/C8H12N2O3S/c1-8(2)4(7(12)13)10-5(11)3(9)6(10)14-8/h3-4,6H,9H2,1-2H3,(H,12,13)/t3-,4+,6-/m1/s1 |
| PubChem CID | 11082 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29349990 |
| Tariff Code | 2934999090 |
Safety & GHS
-
Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H319 Causes serious eye irritation
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H335 May cause respiratory irritation
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P284 Wear respiratory protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
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.
Synonyms
- 6-amino-2,2-dimethylpenam-3alpha-carboxylic acid
- 6-Aminopenicillamine acid
- 6-aminopenicillanate
- 6-Apa
- 6-APA cpd
- 6-Aps
- Aminopenicillanic acid
- Penicin
- Penin
- Phenacyl 6-aminopenicillinate
Frequently asked questions
What is 6-Aminopenicillanic acid used for?
It is a key intermediate in the synthesis of semi-synthetic penicillin antibiotics, used in pharmaceutical manufacturing.
What is the chemical formula and molecular weight of 6-Aminopenicillanic acid?
The formula is C8H12N2O3S with a molecular weight of 216.26 g/mol.
How should 6-Aminopenicillanic acid be stored?
It should be stored at 2 to 8 °C, protected from light and moisture.
What grade is available for 6-Aminopenicillanic acid?
Available in pharmaceutical grade, suitable for use in antibiotic synthesis.
Can Molekula supply 6-Aminopenicillanic acid in bulk?
Yes, Molekula offers bulk quantities for industrial and pharmaceutical applications.
What documentation comes with an order of 6-Aminopenicillanic acid?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
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.