{{chembox| Verifiedfields = changed| Watchedfields = changed| verifiedrevid = 404448904| ImageFile = Petasis reagent V1.svg| ImageSize = 120px| ImageName = Structural formula of the Petasis reagent| ImageFile1 = Petasis-reagent-3D-balls.png| ImageSize1 = 120px | ImageName1 = Ball-and-stick model of the Petasis reagent| IUPACName = Bis(η{{sup|5}}-cyclopentadienyl)dimethyltitanium| OtherNames = Dimethyltitanocene|Section1={{Chembox Identifiers| SMILES = C[Ti](C)(C)c.c1cccc1.c2cccc2| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}| ChemSpiderID = 34981143| InChI = 1/2C5H5.2CH3.Ti/c2 آییراچ ناب پتاسیس ({{lang-en|Petasis reagent}}, {{lang-ru|Реагент Петасиса}}) بیر شیمیایی ماده.