Active ingredientEscitalopramCat. No. P-E091-001CAS 128196-01-0
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Impurity or related compound · Escitalopram family
Pharmaceutical analytical standard4-Methylbenzenesulphonic Acid Hydrate
Synonyms: p-Toluenesulfonic acid monohydrate, Benzenesulfonic acid, 4-methyl-, monohydrate, p-Toluenesulphonic acid monohydrate, Para-toluenesulfonic acid monohydrate, p-toluenesulfonic acid hydrate, Toluene sulfonic acid, TsOH, p-TSA, Ptoluenesulfonic acid, Tosylate hydrate, TsOH hydrate, Para-toluenesulfonic acid hydrate, TsOH.water, PTSA Monohydrate, Tosylate monohydrate, Tosylic acid hydrate, pTSA HOH, pTsOH H2O, TosOH.H2O, pTSA H2O, Tosylic acid monohydrate, TsOH H2O, p-toluene sulfonate hydrate, p-toluenesulfonic acid H2O, p-toluenesufonic acid hydrate, p-toluensulfonic acid hydrate, p-toluenesulfonate monohydrate, p-toluenesulphonic acid hydrate, p-toluenesufonic acid monohydrate, p-toluensulfonic acid monohydrate, p-toluensulphonic acid monohydrate, Para-toluensulfonic acid monohydrate, Paratoluenesulphonic acid monohydrate, Toluene 4-sulfonic acid monohydrate, p-Toluenesulfonic acid monohydrate, CP, p-Toluenesulfonic acid monohydrate (P), Escitalopram EP Impurity J Monohydrate
- Cat. No.
- P-E091-023
- CAS
- 6192-52-5
- Alternative CAS
- 104-15-4 (anhydrous form)
- 70788-37-3 (anhydrous form)
- 657-84-1 (sodium salt)
- 16106-44-8 (potassium salt)
- 1470-83-3 (lithium salt)
- 189944-94-3 (hydrate)
- 51650-46-5 (magnesium salt)
- 4124-42-9 (ammonium salt)
- 16722-51-3 (anhydrous form)
- 13438-45-4 (zinc salt)
- 36747-44-1 (calcium salt)
- 64339-49-7 (olamine)
- 12068-03-0 (sodium salt)
- 123334-05-4 (zinc salt hydrate)
- 60553-56-2 (zinc salt hydrate)
- 14034-59-4 (other salt)
- 143062-84-4 (other salt)
- 1666113-04-7 (other salt)
- 185225-84-7 (other salt)
- 2008714-64-3 (other salt)
- Formula
- C7H8O3S·H2O
- Molecular weight
- 190.21 g/mol
- Category
- Impurity or related compound
Family: Escitalopram
An SSRI antidepressant, approved in the United States in 2002 for major depression and also used for several anxiety disorders, including generalised anxiety, panic disorder and social anxiety.
Did you know?It is only the S, or 'left-handed', form of citalopram: thanks to the experience already gained with that molecule, it was developed in just three and a half years.
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 Escitalopram family
Active ingredientEscitalopramCat. No. P-E091-001CAS 128196-01-0
Active ingredientEscitalopram OxalateCat. No. P-E091-002CAS 219861-08-2
Pharmacopoeial impurity(S)-Citadiol Di-p-toluoyl-D-tartrate (2:1)Cat. No. P-E091-008CAS 128173-53-5
Pharmacopoeial impurity(S)-CitadiolCat. No. P-E091-009CAS 488787-59-3
Pharmacopoeial impurityEscitalopram EP Impurity FCat. No. P-E091-010CAS 2102609-59-4
Pharmacopoeial impurityEscitalopram N-OxideCat. No. P-E091-011CAS 917482-45-2
Pharmacopoeial impurityEscitalopram EP Impurity ICat. No. P-E091-012CAS 1370643-22-3
Pharmacopoeial impurityEscitalopram EP Impurity K OxalateCat. No. P-E091-014CAS 219861-53-7Frequently 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.