DSIP peptide: what researchers should know

DSIP stands for delta sleep-inducing peptide. It was isolated in 1977 by Schoenenberger and Monnier, in an animal study, and named after the slow-wave (delta) brain activity they recorded in it.

The name records that observation from 1977. It is not a statement about what the material does, and nothing on this site makes one.

DSIP is a short, linear peptide of nine amino acids. A listing under the name should say which material it is by its identifiers: the sequence, the molecular formula or the molecular weight.

The identifiers our listing records, where it records them, are on its product page, beside the batch record.

• A lot number that matches the one on the vial label. A certificate for another batch says little about yours.

• The laboratory’s name, and the date it ran the test.

• A purity figure, with the technique that produced it.

• A test of which compound is in the vial, such as mass spectrometry, where the laboratory ran one. A purity figure says how much of the sample is one compound, not which compound it is.

• The amount measured in the vial, against the amount on the label.

• The compound named as DSIP or by its full name, so the record and the label describe the same material.

We supply DSIP from Calgary, Alberta, as a laboratory reagent for in-vitro research. Each pack size has its own page, with its price in Canadian dollars, whether it can be ordered now, and the batch record behind it. When a pack size is out of stock, its page offers one email when it can be ordered again.

• DSIP 5mg

Each batch is tested by an independent laboratory before it is released, and its record stays public on the lab reports page. A batch that did not pass is on the same page, marked rejected with the reason, and is never sold.