Active ingredientDequalinium ChlorideCat. No. P-D047-001CAS 522-51-0
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Pharmacopoeial impurity · Dequalinium family
Pharmaceutical analytical standardDequalinium EP Impurity A
Synonyms: 4-Amino-2-methylquinoline, 2-methylquinolin-4-amine, NSC 60281, Quinaldine, 4-amino-, Quinoline, 4-amino-2-methyl-
- Cat. No.
- P-D047-002
- CAS
- 6628-04-2
- Alternative CAS
- 24391-26-2 (hydrochloride)
- Formula
- C10H10N2
- Molecular weight
- 158.20 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Dequalinium
An antiseptic of the quaternary ammonium family, first described in 1956: it is used in lozenges for mouth and throat infections and in vaginal tablets for bacterial vaginosis.
Did you know?It was the first of the bisquaternary compounds: its molecule is symmetrical, with two positively charged quinolinium rings joined by a chain of ten carbon atoms.
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.
More products in the Dequalinium family
Active ingredientDequalinium ChlorideCat. No. P-D047-001CAS 522-51-0
Pharmacopoeial impurityDequalinium EP Impurity B IodideCat. No. P-D047-003
Pharmacopoeial impurityDequalinium EP Impurity C ChlorideCat. No. P-D047-004CAS 171980-50-0
Pharmacopoeial impurityDequalinium EP Impurity C TriiodideCat. No. P-D047-005
Isotopically labelledDequalinium EP Impurity A-d4Cat. No. P-D047-006
Isotopically labelledDequalinium-d8 DiChlorideCat. No. P-D047-007
ImpurityDequalinium Impurity 1Cat. No. P-D047-010
ImpurityDequalinium Impurity 2Cat. No. P-D047-011Frequently 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.