Cuprammonium cellulose, also known as cuprammonium rayon or cupro, is a type of semi-synthetic cellulose fiber derived from cotton linters or wood pulp. It is produced through a chemical process that involves treating the cellulose with copper hydroxide and ammonia, which results in a solution that can be extruded into fibers. These fibers are known for their softness, lustrous appearance, and high moisture absorbency, making them suitable for a variety of applications, including textiles, where they are often used in clothing due to their comfort and drape. Cuprammonium cellulose is also biodegradable and has a lower environmental impact compared to some synthetic fibers.
The CAS Registry Mumber 9050-09-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,5 and 0 respectively; the second part has 2 digits, 0 and 9 respectively. Calculate Digit Verification of CAS Registry Number 9050-09: (6*9)+(5*0)+(4*5)+(3*0)+(2*0)+(1*9)=83 83 % 10 = 3 So 9050-09-3 is a valid CAS Registry Number.