Bordeaux mixture is a widely used fungicide in agriculture, consisting of a combination of copper sulfate and hydrated lime in water. This blue-colored mixture, named after the Bordeaux region in France where it was first used, has been effective in controlling various fungal diseases in plants, such as downy mildew and powdery mildew. The copper ions in the mixture disrupt the cell walls and membranes of fungi, inhibiting their growth and reproduction. Despite its effectiveness, it is essential to use Bordeaux mixture cautiously, as it can be harmful to beneficial insects and may cause phytotoxicity in some plants if not applied correctly.
The CAS Registry Mumber 8011-63-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,0,1 and 1 respectively; the second part has 2 digits, 6 and 3 respectively. Calculate Digit Verification of CAS Registry Number 8011-63: (6*8)+(5*0)+(4*1)+(3*1)+(2*6)+(1*3)=70 70 % 10 = 0 So 8011-63-0 is a valid CAS Registry Number.