StacksVerified U.S. regulatory reference

27 CFR §21.105-T1

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Specific gravity at 25 °C. 0.895 to 0.905.
  2. (b)Refractive index at 20 °C. 1.4580 to 1.4590.
  3. (c)Optical rotation at 20 °C. −18° to −36°.
  4. (d)Alcohol content (as menthol). 65 percent minimum.
  5. (e)Ketone content (as menthone). 5 percent minimum.