Active ingredientGuaiazuleneCat. No. P-G065-001CAS 489-84-9
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Impurity or related compound · Guaiazulene family
Pharmaceutical analytical standardGuaiazulene Impurity 1
Synonyms: 7-Isopropyl-4-methylazulene-1-carboxylic acid, 4-methyl-7-propan-2-ylazulene-1-carboxylic acid
- Cat. No.
- P-G065-004
- CAS
- 24687-72-7
- Alternative CAS
- N/A
- Formula
- C15H16O2
- Molecular weight
- 228.29 g/mol
- Category
- Impurity or related compound
Family: Guaiazulene
A dark blue hydrocarbon of the azulene family, a sesquiterpene found in the essential oils of guaiac and chamomile; it is used in cosmetics as a colourant and, together with other substances, in soothing skin products.
Did you know?It also occurs in nature far from plants: it is the main pigment of various soft corals, and the blue of the mushroom Lactarius indigo is due to one of its derivatives.
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 Guaiazulene family
Active ingredientGuaiazuleneCat. No. P-G065-001CAS 489-84-9
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ImpurityEthyl guaiazulene sulfonateCat. No. P-G065-005CAS 6223-36-5
ImpurityGuaiazulene Impurity 2Cat. No. P-G065-006CAS 93914-28-4
ImpurityGuaiazulene Impurity 3Cat. No. P-G065-007CAS 65757-01-9
ImpuritySodium Gualenate (Guaiazulene 3-Sulfonate Sodium Salt)Cat. No. P-G065-008CAS 6223-35-4
ImpurityGuaiazulene Impurity 4 HydrochlorideCat. No. P-G065-009CAS 110971-81-8Frequently 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.