Vitamin D3-d3, also known as cholecalciferol, is a fat-soluble vitamin that plays a crucial role in maintaining healthy bones and teeth, as well as supporting the immune system. It is synthesized in the skin upon exposure to sunlight and can also be obtained through diet, particularly from fatty fish, egg yolks, and fortified foods. Vitamin D3-d3 is essential for calcium absorption, which is vital for bone health, and it also has a role in cell growth regulation and neuromuscular function. Deficiency can lead to conditions like rickets in children and osteomalacia in adults, while adequate levels are associated with a reduced risk of various diseases, including certain cancers and autoimmune disorders.
The CAS Registry Mumber 72506-00-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,5,0 and 6 respectively; the second part has 2 digits, 0 and 0 respectively. Calculate Digit Verification of CAS Registry Number 72506-00: (7*7)+(6*2)+(5*5)+(4*0)+(3*6)+(2*0)+(1*0)=104 104 % 10 = 4 So 72506-00-4 is a valid CAS Registry Number.