Estrone-d4 (Estriol EP Impurity B-d4)
Impurity reference standard · Estrone-d4 (Estriol
- CAS number
- 53866-34-5
- Molecular formula
- C18H18D4O2
- Molecular weight
- 274.39
- Purity
- 95%+
- Appearance
- White to Off-White Solid
- Storage
- -20±5℃
About Estrone-d4 (Estriol EP Impurity B-d4)
Estrone-d4 (Estriol EP Impurity B-d4) is a specified impurity of Estrone-d4 (Estriol. It is registered under CAS number 53866-34-5.
The compound is characterised by its molecular formula C18H18D4O2 and a molecular weight of 274.39, with the two-dimensional structure shown above. Because it shares the Estrone-d4 (Estriol scaffold, it is typically used to track process-related and degradation impurities of Estrone-d4 (Estriol during method development, forced degradation and stability studies.
Each pack ships with a certificate of analysis reporting purity of 95%+ together with the supporting analytical data — HNMR, MS and HPLC or GC traces — so the material can be released straight into your own QC workflow. Recommended storage: -20±5℃.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
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