Molekula
Amoxicillin Related Compound A - USP CRS
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
Amoxicillin Related Compound A - USP CRS is a reference standard and analytical tool used primarily for pharmaceutical research, quality control, and method validation in the development and testing of amoxicillin-based formulations. It serves as a benchmark for HPLC, GC, and other analytical techniques to ensure accuracy in drug analysis. This compound has the CAS number 551-16-6, with a molecular formula of C8H12N2O3S and a molecular weight of 216.26. It must be stored between 2 to 8°C and carries a **Danger** signal word due to its hazardous nature. Molekula supplies Amoxicillin Related Compound A - USP CRS 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
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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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 to beige powder |
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 | 90037587 |
| 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
-
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-Aminopenicillanic acid
- 6-Apa
- 6-Aps
- Aminopenicillanic acid
- Penicin
- Penin
- Phenacyl 6-aminopenicillinate
Frequently asked questions
What is Amoxicillin Related Compound A (CAS 551-16-6) used for?
This compound is primarily used as a **USP Certified Reference Standard (CRS)** for analytical validation in pharmaceutical quality control, particularly for amoxicillin-related assays and method development.
What is the molecular formula and molecular weight of this compound?
The molecular formula is **C₈H₁₂N₂O₃S**, and the molecular weight is **216.26 g/mol**.
How should Amoxicillin Related Compound A be stored?
Store at **2–8°C** in a tightly sealed container, protected from light and moisture. Avoid exposure to extreme temperatures.
What grade is available for this compound?
This product is supplied as a **USP Certified Reference Standard (CRS)**, meeting strict purity and documentation requirements for pharmaceutical applications.
Can Molekula supply this compound in bulk quantities?
Bulk quantities may be available upon request—please contact our sales team to discuss specific requirements and lead times.
What documentation comes with the order of this compound?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **USP CRS documentation** confirming compliance with regulatory standards.
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.