The Butyltriphenylphosphonium chloride ,its cas register number is 13371-17-0.It also can be called as and the IUPAC name about this chemical is Butyl(triphenyl)phosphanium chloride .It belongs to the following product categories, such as C-C Bond Formation, Olefination, Wittig Reagents and so on.

The Butyltriphenylphosphonium chloride is a white to off-white crystalline powder and it can soluble in water, aldo it is Hygroscopic sensitive.In addition, it is a dangerous chemical, because it is harmful if swallowed and it irritating to eyes, respiratory system and skin. In the using process, you need to wear suitable protective clothing, gloves and eye/face protection and in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

This chemical can be described computed from structure:
(1)Canonical SMILES: CCCC[P+](C1=CC=CC=C1)(C2=CC=CC=C2)C3=CC=CC=C3.[Cl-]
(2)InChI: InChI=1S/C22H24P.ClH/c1-2-3-19-23(20-13-7-4-8-14-20,21-15-9-5-10-16-21)22-17-11-6-12-18-22;/h4-18H,2-3,19H2,1H3;1H/q+1;/p-1 
(3)InChIKey: MFIUDWFSVDFDDY-UHFFFAOYSA-M