# SBz Industries

> Supplier of research-use-only synthetic peptides and laboratory reference materials. Lab certificates from an independent laboratory are published on the product page as reports come back. Nothing on the site describes what a compound does; compound pages state structure, origin and molecular target only, and no citation is ever generated.

## Method guides
- [How to read a certificate of analysis](https://www.sbzindustries.com/research/how-to-read-a-coa): What the purity number means, how identity is confirmed, and the fields to check before you order.
- [HPLC vs mass spectrometry: what each one tells you](https://www.sbzindustries.com/research/hplc-vs-mass-spectrometry): One measures how much of the sample is the compound. The other confirms the compound is what the label says. Neither answers the other's question.
- [Net peptide content vs purity](https://www.sbzindustries.com/research/net-peptide-content): Two numbers that look the same on a certificate and are not. Salts and water make up the difference.
- [Reconstitution and handling](https://www.sbzindustries.com/research/reconstitution): Bacteriostatic water, working concentration, and the handling mistakes that waste the most material.
- [Bacteriostatic water: use, shelf life and volumes](https://www.sbzindustries.com/research/bacteriostatic-water): What it is, how it differs from sterile water and saline, how long an opened vial lasts, and how much to draw for a given vial.
- [Storage, stability and degradation](https://www.sbzindustries.com/research/stability): What heat, light and freeze-thaw cycles do to a peptide over weeks, and what each storage condition buys you.
- [Why peptides ship freeze-dried](https://www.sbzindustries.com/research/lyophilization): What freeze-drying does to a peptide, and why the powder outlasts the solution by so much.
- [When a peptide will not dissolve](https://www.sbzindustries.com/research/solubility-troubleshooting): Sequence, pH and technique, and which of the three is usually the problem.
- [Cold chain and transit risk](https://www.sbzindustries.com/research/cold-chain): What happens to a vial in a truck in August, and which compounds care.
- [Endotoxin testing: LAL, rFC and MAT](https://www.sbzindustries.com/research/endotoxin-testing): Three tests with different reagents and different blind spots. What each one detects and misses.
- [Sterility and endotoxin are different questions](https://www.sbzindustries.com/research/sterility-vs-endotoxin): A sterile sample can still carry endotoxin. The two tests answer different questions and neither replaces the other.
- [Third-party testing vs in-house](https://www.sbzindustries.com/research/third-party-vs-in-house): Where the conflict of interest sits, and what an independent lab changes about a number.

## Reference
- [Research hub](https://www.sbzindustries.com/research): the method guides and the structural compound reference
- [Testing standard](https://www.sbzindustries.com/quality): what the lab checks and how certificates are posted
- [Certificate archive](https://www.sbzindustries.com/coa): every lab certificate posted so far
- [Catalog](https://www.sbzindustries.com/catalog): compounds grouped by structure, not by use
- [About](https://www.sbzindustries.com/about): who is responsible for what is written here

## Policy
- [Terms of sale](https://www.sbzindustries.com/terms)
- [Privacy](https://www.sbzindustries.com/privacy)