Antazoline phosphate: imidazoline antihistamine.
Antazoline phosphate testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Antazoline phosphate: 2D structure drawn from the PubChem record (CID 158798).
154-68-7
C17H19N3 · H3PO4
363.35 g/mol
Imidazoline antihistamine
Identity: Antazoline phosphate
IUPAC name: N-benzyl-N-(4,5-dihydro-1H-imidazol-2-ylmethyl)aniline;phosphoric acid
Method for the $250 identity, purity and quantity test: HPLC-UV purity and assay, LC-MS identity, against a reference standard, with results in 3 to 5 business days.
The USP monograph covers identity by infrared spectroscopy and HPLC retention time, assay by HPLC, organic impurities by HPLC, and pH and loss on drying. Full testing to the USP Antazoline Phosphate monograph is available and quoted.
Chromatographic purity and mg per unit by the method matched to the compound, identity against a reference standard. 1 unit.
| Add-on test | Price |
|---|---|
| Identity and impurities | |
| FTIR identity | $90 |
| CHNS elemental analysis (carbon, hydrogen, nitrogen, sulfur) | $125 |
| Chiral purity (where a chiral method exists; new methods quoted) | $250 |
| Water, solvents and salt form | |
| Water content by Karl Fischer | $60 |
| Residual solvents | $150 |
| Counterions: chloride, acetate and TFA | $70 |
| Assay | |
| Assay, % w/w (with raw powder purity; $250 together) | +$50 |
| Metals and conformity | |
| Heavy metals: arsenic, cadmium, chromium, mercury and lead | $150 |
| Conformity: purity and quantity on more units from the same lot | $100 per extra unit |
| Microbiology (injectables) | |
| Endotoxin | $210 |
| Sterility or bioburden | $150 |
| Container closure integrity (CCI) | $50 |
| Screening | |
| Fentanyl screen | $50 |
10% off for 10 or more samples.
Need something else? Other tests are available on request.
Purity and quantity is $250 per sample (1 unit) and raw powder purity is $200 for 50 mg, with results in 3 to 5 business days. Send the material sealed and labeled, with the label claim and the form it contains.
No. The $250 test covers identity, purity and quantity by HPLC with UV detection for purity and assay, and LC-MS for identity. Full testing to the USP Antazoline Phosphate monograph is available and quoted.
The USP material is the phosphate salt, and results are reported on that basis unless you ask for the free base. The phosphate adds a noticeable share of the weight.
It is most often a powder or an eye drop, where it is commonly combined with a decongestant such as naphazoline. In combination products both compounds are separated on the HPLC run.
https://pubchem.ncbi.nlm.nih.gov/compound/158798
Identity facts from the USP monograph header for this compound.
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