P188 RCRA waste code Muscle-stimulating drug salt, acutely toxic, discarded unused.

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Based on 40 CFR 261.33 and EPA guidance
Nothing is stored

Acute hazardousP-listed waste
Physostigmine salicylate

P-list unused product.

Acute hazardous P-listed waste for unused physostigmine salicylate, a drug salt. It is in the strictest class.

Is P188 hazardous waste?

Yes, when the listing applies. P188 covers discarded, unused physostigmine salicylate, including off-specification product and qualifying residues. The P listing makes it acute hazardous waste, so the stricter acute quantities apply even for a small amount of the chemical.

Where a hazardous waste manifest is required, put P188 in Item 13. For exceptions, use the VSQG exemptions and empty-container rules and pharmaceutical containers.

What does P188 cover?

This listing covers unused physostigmine salicylate discarded as pure or technical grade, or in a formulation where it is the only active ingredient. Off-specification batches, nonempty-container residues and spill cleanup residues from these products are included. Inactive ingredients don't stop the chemical counting as the sole active ingredient.

CAS: 57-64-7
Table entries: Benzoic acid, 2-hydroxy-, compd. with (3aS-cis)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indol-5-yl methylcarbamate ester (1:1).; Physostigmine salicylate.; Benzoic acid, 2-hydroxy-, compd. with (3aS-cis)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo[2,3-b]indol-5-yl methylcarbamate ester (1:1); Physostigmine salicylate
Hazard codes in the record: H (acute hazardous)
Rule: 40 CFR 261.33(e)

Is waste physostigmine salicylate always P188?

Code	When it fits
P188	The unused chemical is discarded as pure or technical grade, or as the sole active ingredient. Qualifying product residues count too.
Characteristic waste (D001–D043)	A used chemical or a different formulation shows a hazardous-waste characteristic. Any process listings that fit apply too.

A listed unused product can also show a characteristic, so more than one row can apply. Having this chemical somewhere in a manufacturing waste doesn't make the waste P188. Match the waste’s origin, formulation and use history. Mixing listed waste with solid waste, or treating it, generally doesn't remove the listing unless an exclusion, exception or approved delisting applies.

Which wastes take P188?

Waste	When it’s P188
Waste pharmaceuticals	Unused physostigmine salicylate is discarded and is the sole active ingredient.

Which codes sit beside P188?

Code	What it is
P123	Toxaphene — an insecticide
P127	Carbofuran — a carbamate insecticide
P128	Mexacarbate — a carbamate pesticide
P185	Tirpate — a carbamate pesticide
P189	Carbosulfan — a carbamate pesticide
P190	Metolcarb — a carbamate pesticide
P191	Dimetilan — a carbamate pesticide
P192	Isolan — a carbamate insecticide