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Oregon Revised Statutes

Or. Rev. Stat. § 475.940 (2026)

Precursor substances described

✓ current as of May 2026
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      475.940 Precursor substances described. As used in ORS 475.752 to 475.980:

      (1) “Iodine matrix” means iodine at a concentration greater than two percent by weight in a matrix or solution.

      (2) “Matrix” means something, as a substance, in which something else originates, develops, or is contained.

      (3) “Precursor substance” means:

      (a) Phenyl-2-propanone.

      (b) Methylamine.

      (c) D-lysergic acid.

      (d) Ergotamine.

      (e) Diethyl Malonate.

      (f) Malonic acid.

      (g) Ethyl Malonate.

      (h) Barbituric acid.

      (i) Piperidine.

      (j) N-acetylanthranilic acid.

      (k) Ethylamine.

      (L) Pyrolidine.

      (m) Phenylacetic acid.

      (n) Anthranilic acid.

      (o) Morpholine.

      (p) Ephedrine.

      (q) Pseudoephedrine.

      (r) Norpseudoephedrine.

      (s) Phenylpropanolamine.

      (t) Benzyl cyanide.

      (u) Ergonovine.

      (v) 3,4-Methylenedioxyphenyl-2-propanone.

      (w) Propionic anhydride.

      (x) Insosafrole (Isosafrole).

      (y) Safrole.

      (z) Piperonal.

      (aa) N-methylephedrine.

      (bb) N-ethylephedrine.

      (cc) N-methylpseudoephedrine.

      (dd) N-ethylpseudoephedrine.

      (ee) Hydriotic acid.

      (ff) Gamma butyrolactone (GBL), including butyrolactone, 1,2-butanolide, 2-oxanol-

one,  tetrahydro-2-

furanone, dihydro-2(3H)-

furanone and tetramethylene glycol, but not including gamma aminobutyric acid (GABA).

      (gg) 1,4-butanediol.

      (hh) Any salt, isomer or salt of an isomer of the chemicals listed in paragraphs (a) to (gg) of this subsection.

      (ii) Iodine in its elemental form.

      (jj) Iodine matrix.

      (kk) Red phosphorus, white phosphorus, yellow phosphorus or hypophosphorus acid and its salts.

      (LL) Anhydrous ammonia.

      (mm) Lithium metal.

      (nn) Sodium metal.

      (oo) Any substance established as a precursor substance by rule under authority granted in ORS 475.945. [1987 c.657 §§3,3a; 2001 c.615 §1; 2003 c.448 §1; 2005 c.706 §17]

Notes of Decisions
Cited in 5 cases, 1993–2007 · leading case: State v. Rutley, 171 P.3d 361 (Or. 2007).
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State v. Rutley, 171 P.3d 361 (Or. 2007). · cites it 4× “999 was made “part of ORS 475.940 to 475.995.” Or Laws 2001, ch 870, § 20.”
State v. Harper, 105 P.3d 883 (Or. Ct. App. 2005). “See ORS 475.940(1), (3)(jj) (providing that iodine matrix is a “precursor substance”); ORS 475.”
State v. Engen, 993 P.2d 161 (Or. Ct. App. 1999). “285 and ORS 475.940 to ORS 475.995, it is unlawful for any person to: “(1) Manufacture or deliver a schedule I, II or III controlled substance within 1,000 feet of the real property comprising a public or private elementary, secondary or career school attended primarily by…”
State v. Walker, 915 P.2d 1039 (Or. Ct. App. 1996). “285 and ORS 475.940 to ORS 475.995, it is unlawful for any person to: “(1) Manufacture or deliver a schedule I, II or III controlled substance within 1,000 feet of the real property comprising a public or private elementary, secondary or career school attended primarily by…”
State v. Kast, 852 P.2d 242 (Or. Ct. App. 1993). · cites it 5× “The use of the term ‘precursor’ in this subsection does not control and is not controlled by the use of the term ‘precursor’ in ORS 475.940, 475.950 and 475.955.” (Emphasis supplied.”
— Or. Rev. Stat. § 475.940(1) — 1 case
State v. Harper, 105 P.3d 883 (Or. Ct. App. 2005). “See ORS 475.940(1), (3)(jj) (providing that iodine matrix is a “precursor substance”); ORS 475.”
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