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Atorvastatin impurity 4 (calcium)

Drug Impurity

Atorvastatin Impurity 4 (Calcium) is a structural impurity associated with the statin drug Atorvastatin. It is primarily utilized as a reference standard in quality control and analytical studies to ensure the purity of pharmaceutical formulations. This compound aids in the identification and quantification of impurities, facilitating compliance with regulatory standards in drug development and manufacturing.

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Specifications

Manufacturer	Adooq Bioscience
CAS Number	693793-53-2
Applications	Drug Impurity
Formula	C₃₃H₃₄CaF₂N₂O₅·1/2Ca
Molecular Weight	596.67
SMILES	O=C(C1=C(C(C)C)N(CC[C@@H](O)C[C@@H](O)CC(O)=O)C(C2=CC=C(C=C2)F)=C1C3=CC=C(C=C3)F)NC4=CC=CC=C4.[Ca]

Storage & Solubility

In Vitro Solubility

Reported Solubility

No reported solubility data are available for this product.

Preparing Stock Solutions

Stock preparation is unavailable for this product molecular weight.

Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.

Storage

Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.