We have gained expertise in manufacturing, supplying, trading and distributing an effective range of ICD with troqer. Cholecalciferol (also known as toxiferol) is a form of vitamin D, also called vitamin D3. Features:Non-toxicLess side effectsFree from impuritiesMetabolism7-Dehydrocholesterol is the precursor of vitamin D3. Within the epidermal layer of skin,7-Dehydrocholesterol undergoes an electrocyclic reaction as a result of UVB radiation, resulting in the opening of the vitamin precursor B-ring through a conrotatory pathway. Following this, the previtamin D3 undergoes antarafacial sigmatropic rearrangement and therein finally isomerizes to form vitamin D3. Cholecalciferol is then hydroxylated in the liver to become calcifediol (25-hydroxyvitamin D3).DoseOne gram is 40,000,000 (40x106) IU, equivalently 1 IU is 0.025 g. Recommendations vary depending on the country. In the US they are: 15 g/d (600 IU per day) for all individuals (males, female, pregnant/lactating women) under the age of 70 years-old. For all individuals older than 70 years, 20 g/d (800 IU per day) is recommended.StabilityCholecalciferol is very sensitive to UV radiation and will rapidly, but reversibly, break down to form sura-sterols, which can further irreversibly convert to ergosterol.Toxicity Rodents are somewhat more susceptible to high doses than other species, and cholecalciferol has been used in poison bait for the control of these pests. It has been claimed that the compound is less toxic to non-target species.