sextuplicate
Six times the number, volume, length, etc. (of something else).
The customer ordered a sextuplicate quantity.
Comprising six identical parts.
Benzene is a sextuplicate hydrocarbon.
Where it comes from
From Latin sextuplicātus, past participle form of sextuplicāre (“to sextuple”), from sextuplus (“sixfold”), from sextus (“sixth”) (from sex (“six”)) + -plus (“-fold”) (from plicare (“to fold”)).
Adapted from the Wiktionary entry sextuplicate (CC BY-SA 4.0).