Active ingredientMisoprostol (Mixture of Diastereomers)Cat. No. P-M143-001CAS 59122-46-2
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Impurity or related compound · Misoprostol family
Pharmaceutical analytical standardMisoprostol Acid (Mixture of Diastereomers)
Synonyms: Misoprostol acid, Misoprostol free acid, Misoprostol (free acid form), Carboprost Impurity 22, Misoprostolic acid, Misoprostanoic acid
- Cat. No.
- P-M143-013
- CAS
- 66792-31-2
- Alternative CAS
- 112137-89-0 (alternative CAS, same compound)
- Formula
- C21H36O5
- Molecular weight
- 368.51 g/mol
- Category
- Impurity or related compound
Family: Misoprostol
A synthetic analogue of prostaglandin E1, developed in 1973 to treat gastric ulcers: today it is used to prevent ulcers caused by anti-inflammatory drugs and in obstetrics, for example against bleeding after childbirth.
Did you know?It is heat-stable and needs no refrigeration: for this reason, and because it needs no injection, it is valuable against bleeding after childbirth in places where doctors and nurses are scarce.
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 Misoprostol family
Active ingredientMisoprostol (Mixture of Diastereomers)Cat. No. P-M143-001CAS 59122-46-2
Pharmacopoeial impurityMisoprostol EP Impurity ACat. No. P-M143-002CAS 1788085-78-8
Pharmacopoeial impurityMisoprostol EP Impurity BCat. No. P-M143-003
Pharmacopoeial impurityMisoprostol EP Impurity CCat. No. P-M143-004CAS 58682-86-3
Pharmacopoeial impurityMisoprostol EP Impurity DCat. No. P-M143-006CAS 1788085-79-9
Pharmacopoeial impurityMisoprostol EP Impurity ECat. No. P-M143-007CAS 58717-36-5
Pharmacopoeial impurityMisoprostol EP Impurity FCat. No. P-M143-008CAS 40098-26-8
Isotopically labelledMisoprostol Acid-d5Cat. No. P-M143-009CAS 1337917-44-8Frequently 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.