CAS No.50-14-6 Vitamin D2

Vitamin D2

Name Vitamin D2
CAS Registry Number 50-14-6
Synonyms VITAMIN D;VITAMIN D2;VITAMIN D2 WATER;VIOSTEROL;(3beta,5Z,7E,22E)-9,10-Secoerga-5,7,10(19),22-tetraen-3-ol;(3beta,5Z,7E,22E)-9,10-Secoergosta-5,7,10(19)-,22-tetraen-3-ol;(3-beta,5z,7e,22e)-9,10-secoergosta-5,7,10,(19),22-tetraen-3-ol;(5E,7E,22E)-9,10-Secoergosta-5,7,10,22-tetraen-3-ol
Molecular Structure Vitamin D2   50-14-6
Molecular Formula C28H44O
Molecular Weight 396.65
mp: 114-118 ℃(lit.)
Hazard Codes: Details
Risk Statements: 22-48/25-26-24/25-40-23/24/25
Safety Statements: 28-36/37-45-28A-36-26-36/37/39-22
RIDADR: UN 2811 6.1/PG 2

CAS 50-14-6 Wiki / 50-14-6 MSDS

Skeletal formula of ergocalciferol
Ball-and-stick model of the ergocalciferol molecule
Clinical data
Trade names Drisdol, Calcidol, others
Synonyms viosterol
AHFS/ Monograph
  • US: A (No risk in human studies) and C
ATC code
  • A11CC01 (WHO)
Legal status
Legal status
  • US: OTC
CAS Number
  • 50-14-6  YesY
PubChem CID
  • 5280793
  • DB00153
  • 4444351
  • VS041H42XC
  • C05441
  • CHEBI:28934
  • CHEMBL1536
ECHA InfoCard 100.000.014
Chemical and physical data
Formula C28H44O
Molar mass 396.65 g/mol
3D model (JSmol)
  • Interactive image
Melting point 114 to 118 °C (237 to 244 °F)

Ergocalciferol, also known as vitamin D2 and calciferol, is a type of vitamin D found in food and used as a dietary supplement.[1] As a supplement it is used to prevent and treat vitamin D deficiency.[2] This includes vitamin D deficiency due to poor absorption by the intestines or liver disease.[3] It may also be used for low blood calcium due to hypoparathyroidism.[3] It is used by mouth or injection into a muscle.[2][3]

Excessive doses can result in increased urine production, high blood pressure, kidney stones, kidney failure, weakness, and constipation.[4] If high doses are taken for a long period of time tissue calcification may occur.[3] It is recommended that people on high doses have their blood calcium levels regularly checked.[2] Normal doses are safe in pregnancy.[5] It works by increasing the amount of calcium absorbed by the intestines and kidneys.[4] Food in which it is found include some mushrooms.[6]

Ergocalciferol was first described in 1936.[7] It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.[8] Ergocalciferol is available as a generic medication and over the counter.[4] In the United Kingdom a typical dose costs the NHS less than 10 pounds a month.[2] Certain foods such as breakfast cereal and margarine have ergocalciferol added to them in some countries.[9][10]