Alum hematoxylin is a widely used histological stain, primarily composed of hematoxylin, aluminum salts, and other additives. It is known for its ability to stain cell nuclei a deep blue color, making it an essential tool in the field of histology and pathology for visualizing the structure and organization of tissues. The staining process involves the interaction of the hematoxylin with the basic proteins in the cell nuclei, while the aluminum salts help to fix the stain, enhancing the contrast and durability of the染色. Alum hematoxylin is particularly useful for identifying and examining various cellular components, such as chromatin, and is a fundamental technique in diagnostic and research laboratories.
The CAS Registry Mumber 1339-94-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,3,3 and 9 respectively; the second part has 2 digits, 9 and 4 respectively. Calculate Digit Verification of CAS Registry Number 1339-94: (6*1)+(5*3)+(4*3)+(3*9)+(2*9)+(1*4)=82 82 % 10 = 2 So 1339-94-2 is a valid CAS Registry Number.