Empty clear glass vial with a blue flip-off cap

Looking for something else?

Tell us the compound and quantity you are looking for and we will confirm availability and lead time. Research use only.

Contact Us

SLU-PP-332 5mg

£42.50

Synthetic small molecule, supplied as a reference standard for laboratory research. Not a peptide.

  • Handled and stored differently from the peptide catalogue
  • Lot matched certificate of analysis with every order
  • Research use only. Not for human or veterinary use

4 in stock

Quantity discount Select a tier or set the quantity
  • Research use only Not for human or veterinary use
  • Certificate per lot Published against the lot number
  • Independently tested RP-HPLC with LC-MS identity
  • Restricted sale 18+ qualified researchers only

What is SLU-PP-332?

SLU-PP-332 is a synthetic small molecule supplied as a reference standard for laboratory research. It is not a peptide, and it is handled, stored and prepared differently from the rest of the catalogue.

Compound class

It is a synthetic agonist of the oestrogen related receptors, a family of orphan nuclear receptors. It was first described in the academic literature by a research group at Saint Louis University, and the designation SLU-PP-332 is that group’s internal compound code rather than a trade name or an international non-proprietary name.

Where the evidence stands

The published work on this compound is preclinical and the volume of it is small. It appears in cell based and rodent studies of nuclear receptor signalling and mitochondrial metabolism. There is no human data, no clinical development programme and no independent replication at the scale that would let a researcher treat any of the published findings as settled.

Investigators should read the primary literature directly. Secondary summaries of this compound in circulation overstate what the source papers actually report.

Specification figures for SLU-PP-332

The molecular formula, molecular weight and CAS number for the lot supplied are stated on its certificate of analysis. Published figures for research compounds are not always consistent between sources, so this page defers to the certificate rather than restating a value that may not match the material in the vial.

Small molecule handling differs from peptide handling

This compound is not appreciably water soluble. Stock solutions are normally prepared in an organic solvent such as DMSO rather than in water or aqueous buffer, and the working solution is then diluted into the assay medium with attention to the final solvent concentration and to any vehicle effect in the control arm.

Purity is assessed by HPLC with UV detection and identity is confirmed by mass spectrometry. The analytical approach is comparable to the peptide catalogue but the acceptance criteria and the impurity profile are not, so read the certificate for this compound on its own terms.

Analysis and certification

Each lot of SLU-PP-332 is analysed by an independent laboratory before it is released for sale. The certificate of analysis is published against the lot number rather than the product page, so the document you read is the document for the vial you receive.

Research use only

NH Peptides supplies SLU-PP-332 as an analytical reference standard for laboratory research. It is not supplied for any use in humans or animals, and no information on this page describes or implies any such use.

Compound SLU-PP-332
Class Synthetic small molecule. Not a peptide
CAS number Stated on the certificate of analysis
Molecular formula Stated on the certificate of analysis
Molecular weight Stated on the certificate of analysis
Appearance Solid, colour stated on the certificate of analysis
Purity specification ≥98%
Identity method Mass spectrometry
Purity method HPLC with UV detection
Solubility Not appreciably water soluble. Organic solvent required for stock preparation
Labelled quantity 5mg, stated on the vial label

How SLU-PP-332 is tested

Two separate analyses are carried out on every lot before it is released, and both appear on the certificate. Identity is confirmed by mass spectrometry against the expected mass. Purity is determined by HPLC with UV detection.

The purity specification for this compound is lower than the ≥99% applied to the peptide catalogue. That is a difference in what is achievable and expected for a synthetic small molecule of this type, not a difference in how the material is assessed.

Purity specification for SLU-PP-332

Lots are released against a ≥98% purity specification, determined by HPLC peak area. The figure for the lot you receive is stated on its certificate of analysis and may differ from the specification.

A specification is a release threshold, not a description of every lot. Where a measured figure and the specification differ, the certificate is the record that applies to your material. Analytical figures relate to the lot they are published against and carry no implication of suitability for any purpose beyond laboratory research.

Storing SLU-PP-332

Store the sealed vial dry at −20°C or below, protected from light and moisture. Allow it to reach room temperature before breaking the seal, so that moisture does not condense onto the solid.

Preparing stock solutions

This compound is not appreciably water soluble and will not reconstitute in water or aqueous buffer in the way the peptide catalogue does. Prepare stock solutions in an appropriate organic solvent, typically DMSO, and confirm solubility against the certificate of analysis before preparing stocks.

Dilute the stock into assay medium immediately before use, keeping the final solvent concentration within the tolerance of your cell system and matching it in the vehicle control. Solvent effects are a common confounder in small molecule work and are worth controlling explicitly.

Hold stocks at −20°C in tightly sealed, solvent compatible vials. DMSO is hygroscopic and absorbed water will change the effective concentration of a stock over time, so aliquot on preparation and avoid repeated opening of a single tube.

Handling and disposal

Assess the hazards of this material before handling and use appropriate controls and protective equipment. It has not been characterised toxicologically and should be treated as potentially hazardous. Note that DMSO carries dissolved solutes across skin, so solvent stocks require more care in handling than the dry solid.

Record the lot number from the vial label in your own inventory alongside the certificate of analysis, storage temperature and disposal route, so that your records remain auditable after the order closes.

Dispose of unused material, solvent stocks, vials and packaging lawfully and in line with your institution’s waste procedures. Solvent containing waste goes to the appropriate chemical waste stream. Do not dispose to drain.

Is this a peptide?

No. SLU-PP-332 is a synthetic small molecule. It does not reconstitute in water the way the peptide catalogue does, it is stored and prepared differently, and its certificate of analysis uses different methods and acceptance criteria. Read the storage and handling section before ordering if your laboratory is set up only for peptide work.

Why is the purity specification ≥98% rather than ≥99%?

Because that is the appropriate threshold for a synthetic small molecule of this type. It reflects what is achievable and expected for this class of compound rather than a lower standard of assessment. The measured figure for your lot is on its certificate.

What solvent should be used?

An organic solvent, typically DMSO. This compound is not appreciably water soluble. Confirm solubility against the certificate of analysis before preparing stocks, and control the final solvent concentration in your assay and in the vehicle control.

How much published research exists on this compound?

Not a great deal, and all of it preclinical. It appears in cell based and rodent studies from a small number of groups, with no human data and no clinical development programme. Secondary summaries in circulation overstate what the source papers report, so read the primary literature directly.

What does the designation SLU-PP-332 mean?

It is the originating research group’s internal compound code. It is not a trade name and not an international non-proprietary name, which is normal for a compound at this stage of investigation.

How do I match my vial to its certificate?

By lot number. The vial label carries the compound, the labelled quantity and the lot number, and the certificate is published against that same lot number.

How is it shipped?

In plainly labelled packaging on a tracked UK service. Compound names do not appear on the outer packaging.

Who is eligible to order?

Sale is restricted to persons aged 18 or over who are qualified researchers, or who purchase on behalf of a research institution, laboratory or business. This website is not an offer to supply to the general public. Full details are in our research use only policy.

Are prices shown with VAT?

Prices are shown in pounds sterling. Any VAT that applies is calculated and displayed at checkout, together with the delivery charge, before you confirm payment. The total shown at checkout is the total you pay.

Empty clear glass vial with a blue flip-off cap

Looking for something else?

Tell us the compound and quantity you are looking for and we will confirm availability and lead time. Research use only.

Contact Us
Row of NH Peptides research vials

Why NH Peptides

Reference material you can verify, lot by lot

Reproducible work starts with material you can trace. We document every lot from synthesis through to the vial that reaches your bench.
Related reference material

Also in the catalogue

Price range: £50.00 through £150.00
This product has multiple variants. The options may be chosen on the product page
Price range: £25.00 through £40.00
This product has multiple variants. The options may be chosen on the product page
Price range: £15.00 through £35.00
This product has multiple variants. The options may be chosen on the product page
Price range: £15.00 through £40.00
This product has multiple variants. The options may be chosen on the product page
NH Peptides background image

Stay informed

Restock alerts and new lot releases

Be first to know when a sold out lot returns and when new reference material is added to the catalogue.


We use your address for restock notices only. Unsubscribe in one click. See our privacy policy.

In stock now

Most ordered

Price range: £50.00 through £150.00
This product has multiple variants. The options may be chosen on the product page
Price range: £25.00 through £40.00
This product has multiple variants. The options may be chosen on the product page
Price range: £15.00 through £35.00
This product has multiple variants. The options may be chosen on the product page
Price range: £15.00 through £40.00
This product has multiple variants. The options may be chosen on the product page
NH Peptides background image

Research use only

All products listed on this website are supplied for laboratory research use only. They are not medicinal products, are not licensed by the Medicines and Healthcare products Regulatory Agency, and are not for human or veterinary consumption, diagnostic, therapeutic, food or cosmetic use. Nothing on this website is an offer to supply to the general public. Sale is restricted to persons aged 18 or over who are qualified researchers or who purchase on behalf of a research institution, laboratory or business. Buyers are solely responsible for handling, storage, disposal and for compliance with all laws that apply to their own work.