Rhenium (Re) Isotopes

Enriched stable Rhenium (Re) isotopes:
Nominal mass	Accurate mass	% Natural abundance	Chemical form	Enrichment available %

¹⁸⁵Re	184.952951 (3)	37.40 (2)	metal	95 - 97+

¹⁸⁷Re	186.955744 (3)	62.60 (2)	metal	95 - 99+

Both Rhenium isotopes are used for medical purposes. Re-185 is used for the production of Re-186 which is used for bone pain palliation. Re-187 can be used for the production of Re-188 which is used for cancer therapy and restenosis, though most Re-188 is produced via W-186.

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