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CAS RN: 551-16-6 | Product Number: A0800

6-Aminopenicillanic Acid

Purity: >98.0%(HPLC)
  • 6-Amino-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic Acid
  • 6-APA
4   ≥40 
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Product Number A0800
Purity / Analysis Method >98.0%(HPLC)
Molecular Formula / Molecular Weight C__8H__1__2N__2O__3S = 216.26  
Physical State (20 deg.C) Solid
CAS RN 551-16-6
Reaxys Registry Number 15080
PubChem Substance ID 87562327
SDBS (AIST Spectral DB) 10093
Merck Index (14) 458
MDL Number


Purity(HPLC) min. 98.0 area%
Appearance White to Light yellow to Dark green powder to crystal
Purity(Neutralization titration) min. 97.0 %
Specific rotation [a]20/D +270.0 to +280.0 deg(C=1.2, 0.1mol/L HCl)
Solubility in 1mol/L HCl almost transparency
Properties (reference)
Melting Point 199 °C(dec.)
Specific Rotation 275° (C=1.2,0.1mol/L HCl)
Pictogram Pictogram
Signal Word Danger
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
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.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P284 : Wear respiratory protection.
P342 + P311 : If experiencing respiratory symptoms: Call a POISON CENTER/doctor.
P304 + P340 : IF INHALED: Remove person to fresh air and keep comfortable for breathing.
Related Laws:
EC Number 208-993-4
RTECS# XH8225000
Transport Information:
HS Number 2941100000
6-Aminopenicillanic Acid (6-APA): A Precursor of Many Semi-Synthetic Penicillins and Cephalosporins

6-Aminopenicillanic acid (6-APA) is a precursor of many semi-synthetic penicillins and cephalosporins-the β-lactam antibiotics. 6-APA is produced by enzymatic hydrolysis of penicillin G [P1770] [P1772].


PubMed Literature

Documents (Note: Some products will not have analytical charts available.)
Safety Data Sheet (SDS)
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C of A & Other Certificates
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