Pharmacopoeial impurityAlimemazine EP Impurity A L-TartrateCat. No. P-A076-002
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Active ingredient · Alimemazine family
Pharmaceutical analytical standardAlimemazine Hemitartrate
Synonyms: Trimeprazine Tartrate, Repeltin, Theralene, Trimeprazine hemitartrate, Vallergan fte, NSC 17475, NSC 757358, Theralen, Panectyl, Vallergan, Alimemazin (RR)-tartrat, Therafene, Vanectyl, Alimezine, N,N,2-trimethyl-3-(10H-phenothiazin-10-yl)propan-1-amine hemi((2R,3R)-2,3-dihydroxysuccinate)
- Cat. No.
- P-A076-001
- CAS
- 4330-99-8
- Alternative CAS
- 84-96-8 (free base)
- Formula
- 2C18H22N2S·C4H6O6
- Molecular weight
- 746.98 g/mol
- Category
- Active ingredient (API)
A phenothiazine antihistamine, also known as trimeprazine and patented in the 1950s: it is used against itching, including itching of allergic origin, and also has sedative and anti-nausea effects.
Did you know?It is a chemical relative of chlorpromazine but is not used as an antipsychotic; in the United States only vets prescribe it, combined with prednisolone against itching and coughing in dogs.
The two levels compared
| Level 1 Mass balance | Level 2 Mass balance + qNMR | |
|---|---|---|
| Identity (IR, MS, 1H and 13C-NMR; peptides: ESI-MS, MALDI-TOF and IR) | ✓ | ✓ |
| HPLC purity (min. 95%) | ✓ | ✓ |
| Content by mass balance (min. 90%; peptides: for information only)* | ✓ | ✓ |
| Content verified by qNMR (small molecules only) | · | ✓ |
| Suitable to qualify it as an in-house primary standard (ICH Q7) | · | ✓ |
* Mass balance is performed on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it, for example oils and highly volatile substances, on which some of the required measurements cannot be made: in those cases the CoA states how the content was assigned.
What you receive
The analytical standard
Shipped under controlled temperature when the molecule requires it.
Certificate of analysis (CoA)
For every lot: identity, purity and assay, with the supporting spectra and chromatograms.
Safety data sheet (SDS)
Sent with every order.
Tracked shipment
Follow your shipment live, from our warehouse to your lab.
Pharmacopoeial standards available
The official European Pharmacopoeia standards for this molecule, supplied with EDQM documentation.
- Alimemazine TartrateBP 415
- Alimemazine for system suitability CRSEP Y0001581
- Alimemazine hemitartrate CRSEP Y0001583
More products in the Alimemazine family
Pharmacopoeial impurityAlimemazine EP Impurity A L-TartrateCat. No. P-A076-002
NitrosamineN-Nitroso Alimemazine EP Impurity BCat. No. P-A076-003
NitrosamineN-Nitroso Alimemazine Impurity 1Cat. No. P-A076-004
ImpurityAlimemazine Impurity 1Cat. No. P-A076-005
Pharmacopoeial impurityAlimemazine EP Impurity B HClCat. No. P-A076-006CAS 108883-87-0
Active ingredientAlimemazineCat. No. P-A076-007CAS 84-96-8Frequently asked questions
Is mass balance always performed?
Yes, on every molecule. The only exceptions are cases where the chemistry of the molecule prevents it: for example oils and highly volatile substances, on which some measurements (such as thermogravimetry) cannot be made. In those cases the CoA states which method was used to assign the content.
Can I ask for a different quantity?
Yes. The quantities are only suggestions: choose "Other" and enter the milligrams or grams you need.
Which level should I choose?
Level 1 is enough for most routine testing. Level 2 adds an independent qNMR content value and is meant for labs that need to qualify an in-house primary standard. For peptides and similar molecules, Level 2 is not available.
When will I get the quote?
Within 24 working hours, with price, availability and delivery time.
Need a molecule you cannot find?
Custom synthesis of impurities, metabolites and labelled compounds, with the same characterisation level.