N-(1-Methyl-cyclohexylmethyl)-N'-α-naphthyl-thiourea, also known as α-Naphthyl-N-cyclohexylmethylthiourea, is a chemical compound with the molecular formula C18H21N2S. It is a white crystalline solid that is soluble in organic solvents and has a melting point of approximately 90°C. N-<1-Methyl-cyclohexylmethyl>-N'-α-naphthyl-thioharnstoff is primarily used as a reagent in the determination of trace amounts of heavy metals, particularly copper, in various analytical applications. It forms a colored complex with copper ions, which can be quantified spectrophotometrically, making it a valuable tool in chemical analysis and environmental monitoring.
The CAS Registry Mumber 2068-37-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,6 and 8 respectively; the second part has 2 digits, 3 and 7 respectively. Calculate Digit Verification of CAS Registry Number 2068-37: (6*2)+(5*0)+(4*6)+(3*8)+(2*3)+(1*7)=73 73 % 10 = 3 So 2068-37-3 is a valid CAS Registry Number.