Research compound reference
SLU-PP-332
SLU-PP-332 is a synthetic small molecule, an acylhydrazone that joins a 4-hydroxybenzoyl group to a naphthalen-2-ylmethylidene group. The material is a white to off-white lyophilized powder of 99% or greater purity by HPLC, with a lot-specific Certificate of Analysis, for in vitro laboratory research. This page is a technical reference to the material's identity, chemistry, analytical testing and laboratory handling.
For research use only. Not for human or veterinary, diagnostic or therapeutic use.
Structure identifiers
The identifiers a laboratory uses to confirm it is working with SLU-PP-332, as recorded in PubChem.1
Molecular formula
C18H14N2O2
Molecular weight
290.3 g/mol
Systematic name
4-hydroxy-N-[(E)-naphthalen-2-ylmethylideneamino]benzamide
InChIKey
RNZIMBFHRXYRLL-XDHOZWIPSA-N
What is SLU-PP-332?
SLU-PP-332 is a synthetic small molecule, an acylhydrazone that joins a 4-hydroxybenzoyl group to a naphthalen-2-ylmethylidene group. It is catalogued under CAS 303760-60-3 and PubChem CID 5338394, with the molecular formula C18H14N2O2 and a molecular weight of 290.3 g/mol.1
The material described on this page is a synthetic compound intended as a laboratory reagent.
Handling
SLU-PP-332 is a dry solid as received in the laboratory. A reference supplier lists storage of this compound as a solid at -20 °C.2
- Allow the sealed container to reach room temperature before opening, so moisture does not condense on the solid.
- Keep the solid dry, sealed and away from bright light.
- Avoid repeated freezing and thawing.
Storage and stability
| State | Temperature | Notes |
|---|---|---|
| Dry, sealed | -20 °C2 | Keep dry and away from bright light. |
| Freezing and thawing | Avoid repeated freezing and thawing | Applies to the dry solid. |
How each lot is tested
Each lot is tested by an independent third-party laboratory.3 The SLU-PP-332 certificate page names the testing laboratories and lists each lot's purity, net content and test date. Three measurements are reported.
Identity
Mass spectrometry
Checks that the measured molecular mass matches SLU-PP-332. The calculated monoisotopic mass is 290.11 Da.1
A matching mass is consistent with the expected composition. It does not by itself confirm the structure.
Purity
High-performance liquid chromatography (HPLC)
Separates the material from synthesis-related impurities. Purity is reported as the main peak's share of the total detected signal.
Reported per lot. The Oasis Labs specification is 99% or greater.
Quantity
Net content
Measures the mass of material actually present in the sample tested.
Reported per lot on the Certificate of Analysis.
Technical notes
What does the Certificate of Analysis confirm?
Identity by mass spectrometry, purity by HPLC, and the net content of the sample.
Why is the material freeze-dried?
Dry solids are generally more stable than solutions. The material is lyophilized and kept sealed until use in the laboratory.
SLU-PP-332 lot certificates
Each listed SLU-PP-332 lot has its own certificate covering identity, purity and net content.
Catalogue entry: SLU-PP-332
More from the research reference
References
- National Center for Biotechnology Information. PubChem Compound Summary for CID 5338394 (SLU-PP-332). pubchem.ncbi.nlm.nih.gov/compound/5338394. Accessed 20 October 2026.
- Cayman Chemical. SLU-PP-332, item no. 41719, product information (storage -20 °C). caymanchem.com. Accessed 20 October 2026.
- Oasis Labs. SLU-PP-332 Certificate of Analysis page, lot data and testing laboratories (certificate page), and testing methodology, myoasislabs.com/coa-process/.
References document the chemical identity, analytical characterisation and handling of this material.