Active ingredientDimenhydrinateCat. No. P-D128-001CAS 523-87-5
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Pharmacopoeial impurity · Dimenhydrinate family
Pharmaceutical analytical standardDimenhydrinate EP Impurity D
Synonyms: N-(2-(Diphenylmethoxy)ethyl)-N,N',N'-trimethylethane-1,2-diamine, N'-(2-benzhydryloxyethyl)-N,N,N'-trimethylethane-1,2-diamine, Dimenhydrinate impurity D, Ethylenediamine, N-(2-(diphenylmethoxy)ethyl)-N,N',N'-trimethyl-, Dimenhydrinate impurity d (ep impurity), Dimenhydrinate Impurity C2
- Cat. No.
- P-D128-003
- CAS
- 2212-35-3
- Alternative CAS
- 2731709-33-2 (dihydrochloride)
- 2718-46-9 (alternative CAS, same compound)
- Formula
- C20H28N2O
- Molecular weight
- 312.46 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Dimenhydrinate
An antihistamine made of diphenhydramine and 8-chlorotheophylline in a 1:1 ratio, used to prevent and relieve nausea, vomiting and dizziness from motion sickness. It has been in pharmacies since 1949, after studies at Johns Hopkins Hospital in Baltimore.
Did you know?Its effect on motion sickness was discovered by chance in 1947: a patient treated for hives told allergists Leslie Gay and Paul Carliner that her tram rides home were at last free from nausea.
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 Dimenhydrinate family
Active ingredientDimenhydrinateCat. No. P-D128-001CAS 523-87-5
Pharmacopoeial impurityDimenhydrinate EP Impurity HCat. No. P-D128-002CAS 118-23-0
Pharmacopoeial impurityDimenhydrinate EP Impurity D DiHClCat. No. P-D128-004CAS 2731709-33-2
Pharmacopoeial impurityDimenhydrinate EP Impurity ECat. No. P-D128-005CAS 4921-49-7
Pharmacopoeial impurityDimenhydrinate EP Impurity FCat. No. P-D128-006CAS 17471-10-2
Pharmacopoeial impurityDimenhydrinate EP Impurity F as HydrochlorideCat. No. P-D128-007CAS 53499-40-4
Pharmacopoeial impurityDimenhydrinate EP Impurity KCat. No. P-D128-008CAS 574-42-5
ImpurityDimenhydrinate Impurity 1Cat. No. P-D128-011CAS 5270-31-5Frequently 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.