![Trellium d formula](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/1/1c/Trellium_d_formula.jpg/revision/latest/scale-to-width-down/180?cb=20170906192414&path-prefix=en)
A chemical formula for Trellium-D
A chemical formula was the formulaic representation of a chemical's components.
In 2371, Doctor Julian Bashir wished to perform tests to determine the exact chemical formula of an isogenic enzyme (Ketracel-white) which a Jem'Hadar youth was suffering withdrawal from. While initially reluctant to have Bashir perform the tests, Odo was able to persuade the boy to allow it. (DS9: "The Abandoned")