The 1-Naphthaleneacetylchloride, with the CAS registry number 5121-00-6, has the systematic name of naphthalen-1-ylacetyl chloride. It belongs to the following product categories: Carbonyl Chlorides; Carbonyl Chlorides; Fused Ring Systems. And the molecular formula of the chemical is C₁₂H₉ClO.

The characteristics of 1-Naphthaleneacetylchloride are as followings: (1)ACD/LogP: 3.46; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 3.46; (4)ACD/LogD (pH 7.4): 3.46; (5)ACD/BCF (pH 5.5): 252.93; (6)ACD/BCF (pH 7.4): 252.93; (7)ACD/KOC (pH 5.5): 1826.72; (8)ACD/KOC (pH 7.4): 1826.72; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 17.07 Å²; (13)Index of Refraction: 1.628; (14)Molar Refractivity: 58.52 cm³; (15)Molar Volume: 164.8 cm³; (16)Polarizability: 23.2×10^-24cm³; (17)Surface Tension: 46.7 dyne/cm; (18)Density: 1.241 g/cm³; (19)Flash Point: 156.4 °C; (20)Enthalpy of Vaporization: 57.66 kJ/mol; (21)Boiling Point: 333.7 °C at 760 mmHg; (22)Vapour Pressure: 0.000134 mmHg at 25°C. 

Uses of 1-Naphthaleneacetylchloride: It can react with 1-methyl-piperazine to produce 1-(4-methyl-πperazin-1-yl)-2-naphthalen-1-yl-ethanone. This reaction will need reagent triethylamine, and the menstruum diethyl ether. The reaction time is 20 hours with temperature of 20°C, and the yield is about 90%. 

You should be cautious while dealing with this chemical. It may cause burns. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and if in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: ClC(=O)Cc2cccc1ccccc12
(2)InChI: InChI=1/C12H9ClO/c13-12(14)8-10-6-3-5-9-4-1-2-7-11(9)10/h1-7H,8H2
(3)InChIKey: DSVAZLXLRDXHKO-UHFFFAOYAN