Chlorpheniramine maleate: antihistamine (alkylamine H1 blocker).
Chlorpheniramine maleate testing at Vanguard Laboratory: identity, purity and quantity $250 per sample, with results in 3 to 5 business days.
Chlorpheniramine maleate: 2D structure drawn from the PubChem record (CID 5281068).
113-92-8
C16H19ClN2 · C4H4O4
390.86 g/mol
Antihistamine (alkylamine H1 blocker)
Identity: Chlorpheniramine maleate
IUPAC name: (Z)-but-2-enedioic acid;3-(4-chlorophenyl)-N,N-dimethyl-3-pyridin-2-ylpropan-1-amine
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 residue on ignition, optical rotation and loss on drying. Full testing to the USP Chlorpheniramine 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-UV for purity and assay, with LC-MS to confirm identity. Full testing to the USP Chlorpheniramine monograph is available and quoted.
Yes. It is a racemic mixture, and dexchlorpheniramine is the single S form with its own USP monograph. A standard HPLC purity test does not separate the two, and chiral testing is quoted separately.
USP names compounds such as the des-chloro analog pheniramine and di(pyridin-2-yl)amine. These appear as separate peaks in the HPLC purity profile.
Yes, by default. The maleate makes up about 30 percent of the salt by weight, so tell us if you need the free base basis.
https://pubchem.ncbi.nlm.nih.gov/compound/5281068
Identity facts from the USP monograph header for this compound.
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