Tin(II) forms a yellow coloured complex with 6-chloro-3-hydroxy-7-methyl-2-(4'-methoxyphenyl)-4-oxo-4H-1-benzopyran in  hydrochloric acid medium. The complex is extractable into dichloromethane and shows maximum absorbance in the range of 424-428 nm. The 1: 2 (M: L) complex is found to be stable for more than 4 h in dichloromethane. Beer.s law is obeyed in the range 0.0 to 1.68 µg Sn(II)/ml with an optimum range of determination as found from Ringbom plot is 0.23-1.51  µg g ml^-1. The molar absorptivity and Sandell’s sensitivity of the complex are 6.29×10⁴ L mol^-1 cm^-1 and 0.0019 µg Sn(II) cm^-2 at 426 nm, respectively. The method is free from interference of a large number of important anions/complexing agents and cations. The method is quite simple and has been satisfactorily applied to the analysis of tin in various samples including gun metal and tin can.