Active ingredientPenicillamineCat. No. P-P044-001CAS 52-67-5
Drag to rotate
Impurity or related compound · Penicillamine family
Pharmaceutical analytical standardHomocysteine-penicillamine disulfide
- Cat. No.
- P-P044-012
- CAS
- N/A
- Alternative CAS
- N/A
- Formula
- C9H18N2O4S2
- Molecular weight
- 282.37 g/mol
- Category
- Impurity or related compound
Family: Penicillamine
A chelating agent derived from penicillin, introduced in 1956 by English physician John Walshe for Wilson's disease; it is also used in cystinuria and severe rheumatoid arthritis.
Did you know?Walshe found it in the urine of people who had taken penicillin, himself included, and discovered that it helped remove copper; although it comes from an antibiotic, it has no antibiotic activity.
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 Penicillamine family
Active ingredientPenicillamineCat. No. P-P044-001CAS 52-67-5
Pharmacopoeial impurityBacampicillin EP Impurity FCat. No. P-P044-002CAS 52-66-4
Isotopically labelledPenicillamine Impurity 6 (Mixture of Isomers)-d3Cat. No. P-P044-003
Isotopically labelledPenicillamine-d3Cat. No. P-P044-004CAS 2925655-01-0
ImpurityS-Nitroso-N-Acetyl-DL-PenicillamineCat. No. P-P044-005CAS 67776-06-1
Impurity3,3'-Trithiobis-D-valineCat. No. P-P044-006CAS 22801-32-7
ImpurityD-Penicillamine N-Lactose AdductCat. No. P-P044-007
ImpurityD-Penicillamine O-Lactose AdductCat. No. P-P044-008Frequently 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.