CAS 55812-80-1

Ergocalciferol (Vitamin D2) Impurity 1 (Windaus Ketone)

CAS: 55812-80-1

Formula: C₁₉H₃₂O

Molecular weight: 276.47

Ref: 4Z-V-038008

(1R,3aR,7aR)-1-((2R,5R,E)-5,6-Dimethylhept-3-en-2-yl)-7a-methyloctahydro-4H-inden-4-one

CAS: 55812-80-1

Purity: 98%

Molecular weight: 276.4639893

Ref: 10-F622772

Windaus Ketone

Controlled Product

CAS: 55812-80-1

Applications An intermediate used in the preparation of Vitamin D derivatives.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Stewart, B., et al.: J. Pharm. Sci., 73, 1323 (1984), Konno, K., et al.: Chem. Pharm. Bull., 47, 711 (1999),

Formula: C₁₉H₃₂O

Color and Shape: Neat

Molecular weight: 276.46

Ref: TR-W498900

Ergocalciferol

CAS: 55812-80-1

Formula: C₁₉H₃₂O

Molecular weight: 276.47

Ref: ST-EA-CP-E70015

Windaus ketone

CAS: 55812-80-1

Windaus ketone functions as a vitamin D (VD) synthesis inhibitor.

Formula: C₁₉H₃₂O

Purity: 98%

Color and Shape: Solid

Molecular weight: 276.46

Ref: TM-T78057