Trypan Blue is a vital dye used in various biological and medical applications. It is a deep blue, copper-containing phenothiazine derivative, known for its ability to stain dead or dying cells, making it a valuable tool in cell viability assays. Trypan Blue is also used to identify parasites like Trypanosoma, which causes African sleeping sickness, hence its name. It is non-toxic to living cells and is often used to differentiate between live and dead cells in suspensions or cultures. The dye is excluded by healthy cells with intact cell membranes, but is taken up by cells with compromised membranes, allowing for easy identification and separation of viable cells from non-viable ones.
The CAS Registry Mumber 2538-83-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,3 and 8 respectively; the second part has 2 digits, 8 and 3 respectively. Calculate Digit Verification of CAS Registry Number 2538-83: (6*2)+(5*5)+(4*3)+(3*8)+(2*8)+(1*3)=92 92 % 10 = 2 So 2538-83-2 is a valid CAS Registry Number.