Pharmacopoeial impurityClodronate Disodium EP Impurity A Pyridinium SaltCat. No. P-C203-002CAS 134757-52-1
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Pharmacopoeial impurity · Clodronate family
Pharmaceutical analytical standardClodronate Disodium EP Impurity D Pyridinium Salt
- Cat. No.
- P-C203-003
- CAS
- 1227194-02-6
- Alternative CAS
- N/A
- Formula
- CH5ClO6P2·C5H5N
- Molecular weight
- 289.55 g/mol
- Category
- Pharmacopoeial impurity (EP/USP)
Family: Clodronate
A first-generation, non-nitrogenous bisphosphonate that entered the clinic between the 1970s and 1980s: it slows bone resorption and is used for hypercalcaemia of malignancy, multiple myeloma and osteoporosis, and in horses in veterinary medicine.
Did you know?In the laboratory it has a second job: researchers use it to selectively eliminate macrophages and study what happens to the body without these immune cells.
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 Clodronate family
Pharmacopoeial impurityClodronate Disodium EP Impurity A Pyridinium SaltCat. No. P-C203-002CAS 134757-52-1
ImpurityClodronate Disodium TetrahydrateCat. No. P-C203-004CAS 22560-50-5
ImpurityClodronate Impurity DCat. No. P-C203-005CAS 87591-00-2
ImpurityClodronic AcidCat. No. P-C203-006CAS 10596-23-3Frequently 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.