Cedar Oil (for clearing microscopic sections)
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This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
CAS RN®: 8000-27-9-A selected, distilled oil from the wood of the red cedar, Juniperus virginiana Linné (Fam. Pinaceae), should be used for this purpose. Refractive index: about 1.504 at 20°. For use with homogeneous immersion lenses, a specially prepared oil having a refractive index of 1.5150 ± 0.0002 at 20° is required.
