Chemical Classes

Updated June 7, 2024

EHS reviews certain chemical classes and specific chemicals when they are requested for purchase by campus departments. In our review, EHS considers the hazards of utilizing the chemical, the process in which the chemical is used, control measures that the user should take, the effect on Maximum Allowable Quantities (MAQs) in the control area in which the lab is located, and a few other factors. EHS may reach out with questions and also request additional information from you and your lab before approving the chemical purchase.

The chemicals listed below are grouped by hazard class and may be updated periodically. This list is not exhaustive and specific chemicals may not be listed. If the chemical in question is classified in one or several of these hazard classes, EHS needs to review the purchase request.

explosive hazard symbol

Pyrophorics

flammable hazard symbol

Peroxide-Forming Chemicals

health hazard symbol

Regulated Carcinogens

explosive hazard symbol Pyrophorics

Chemical
(-)-1,2-Bis[(2S,5S)-2,5-diethylphospholano]ethane
(+)-1,2-Bis[(2R,5R)-2,5-dimethylphospholano]ethane
1,2-Bis(diethylphosphino)ethane
1,2-Bis(phosphino)ethane
2-Cyanoethyl N,N-diisopropylchlorophosphoramidite
9-BBN dimer
Allylmagnesium bromide solution, 1M solution in diethyl ether
Bromo(tri-tert-butylphosphine)palladium(I) dimer
Butyllithium, 1.6M solution in hexane
Butyllithium, 2.0M solution in cyclohexane
Cadmium >=99.9%
Copper(I) phenylacetylide
Diallylphenylphosphine
Dibutylzinc solution technical, ~1 M in heptane
Dicyclohexylphosphine
Diethylaluminum chloride
Diethylaluminum chloride, 1M solution in hexane
Diethylaluminum ethoxide
Diethylmethoxyborane solution
Diethylphosphine
Diethylzinc
Diethylzinc solution 1.0 M in hexanes
Diethylzinc, 15% w/w solution in hexanes
Di-i-propylphosphine
Diisobutylaluminum chloride
Diisobutylaluminum hydride
Diisobutylaluminum hydride, 1M solution in cyclohexane
Diisobutylaluminum hydride, 1M solution in dichloromethane
Diisobutylaluminum hydride, 1M solution in heptane
Diisobutylaluminum hydride, 1M solution in THF
Diisopropylphosphine, 10 wt.% solution in hexanes
Diisopropylzinc solution 1.0 M in toluene
Dimethylaluminium chloride solution, 0.9M in heptane
Dimethylaluminum chloride
Dimethylaluminum chloride solution, 1.0 M in hexanes
Dimethylzinc
Di-n-butylmagnesium solution
Diphenylphosphine
Diphenylzinc
Disodium tetracarbonylferrate dioxane complex
Di-t-butylphosphine
Ethylaluminum dichloride
Ethylaluminum dichloride, 1M solution in hexane
Ethylaluminum dichloride, 25% solution in toluene
Ethylaluminum sesquichloride
Glycidyl phenyl ether
Iron(0) pentacarbonyl
Lithium dicyclohexylamide 97%
Lithium diisopropylamide
Lithium dimethylamide
Lithium pentamethylcyclopentadienide
Lithium tri-sec-butylborohydride solution, 1.0 M in THF
Methyllithium lithium bromide complex solution 1.5 M in diethyl ether
Methyllithium solution (1.6M) in diethyl ether
Methyllithium, 1-2M solution in diethyl ether
Methyllithium, 1M solution in cumene/MeTHF
Methyllithium, 1M solution in cumene/THF
Methyllithium, 3.1M solution in diethoxymethane
n-Butyllithium solution, 1.6M in hexanes
n-Butyllithium solution, 2.5 M in hexane
n-Butyllithium, 10% solution in hexanes
n-Butyllithium, 11 M solution in hexanes
n-Butyllithium, 2.2 M solution in hexane
Phenylphosphine
R-Alpine-Borane
S-Alpine-Borane(R)
sec-Butyllithium solution, 1.4 M in cyclohexane
Sodium tetraethylborate
tert-Butylmagnesium chloride solution, 1.0 M in THF
tert-Butyl hypochlorite
tert-Butyllithium, 1.9M solution in pentane
tert-Butyllithium, 1.5 M solution in pentane
tert-Butyllithium, 1.6-3.2 M solution in heptane
tert-Butyllithium, 1.7 M solution in pentane
tert-Butylmagnesium chloride solution 1.7 to 2.0 M in diethyl ether
Titanium chloride, 3N solution
Titanium powder
Titanium Powder (Pyrophoric)
Titanium(III) chloride
Tributylborane
Tributylphosphine (pyrophoric)
Triethylaluminum
Triethylaluminum solution 1.0 M in hexanes
Triethylaluminum solution 25 wt. % in toluene
Triethylantimony
Triethylborane
Triethylborane solution 1.0 M in tetrahydropyran
Triethylborane solution, 1.0 M in THF
Triethylphosphine
Triisobutylaluminum
Triisobutylaluminum, 25% solution in hexanes
Triisobutylaluminum, 25% solution in toluene
Trimethylaluminum
Trimethylaluminum solution, 2 M in heptane
Trimethylaluminum solution, 2M in hexanes
Trimethylaluminum solution, 2M in toluene
Tris(trimethylsilyl)phosphine
Tri-tert-butylphosphine
Tri-tert-butylphosphine solution, 1.0 M in toluene
Tri-tert-butylphosphine solution, 50 wt % in toluene
Yttrium Trihydride
Zinc Powder (Pyrophoric)
Zirconium

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flammable hazard symbol Peroxide-Forming Chemicals

Class Chemical
Class A PFCs Butadiene, liquid monomer
Class A PFCs Chloroprene, liquid monomer
Class A PFCs Tetrafluoroethylene, liquid monomer
Class A PFCs Sodium amide
Class A PFCs Potassium amide
Class A PFCs Potassium metal
Class A PFCs Divinyl ether
Class A PFCs Isopropyl ether
Class A PFCs Vinylidene chloride
Class B PFCs Acetal
Class B PFCs Acetaldehyde
Class B PFCs Benzyl alcohol
Class B PFCs 2-Butanol
Class B PFCs Cumene
Class B PFCs Cyclohexanol
Class B PFCs Cyclohexene
Class B PFCs 2-Cyclohexen-1-ol
Class B PFCs Decahydronaphthalene (decalin)
Class B PFCs Diacetylene (butadine, gas)
Class B PFCs Dicyclopentadiene
Class B PFCs Diethylene glycol dimethyl ether (diglyme)
Class B PFCs Diethyl ether (ether)
Class B PFCs Dioxanes
Class B PFCs Ethylene glycol ether acetates (glyme)
Class B PFCs Furan
Class B PFCs 4-Heptanol
Class B PFCs 2-Hexanol
Class B PFCs Methylacetylene (gas)
Class B PFCs 3-Methyl-1-butanol
Class B PFCs Methyl cyclopentane
Class B PFCs Methyl isobutyl ketone
Class B PFCs 4-Methyl-2-pentanol
Class B PFCs 2-Pentanol
Class B PFCs 4-Penten-1-ol
Class B PFCs 1-Phenylethanol
Class B PFCs 2-Phenylethanol
Class B PFCs Tetrahydrofuran (THF)
Class B PFCs Tetrahydronaphthalene (tetralin)
Class B PFCs Vinyl ethers
Class C PFCs Acrylic acid
Class C PFCs Acrylonitrile
Class C PFCs Butadiene (gas)
Class C PFCs Chlorobutadiene
Class C PFCs Chloroprene
Class C PFCs Chlorotrifluoroethylene (gas)
Class C PFCs Methyl methacrylate
Class C PFCs Styrene
Class C PFCs Tetrafluoroethylene (gas)
Class C PFCs Vinyl acetate
Class C PFCs Vinylacetylene (gas)
Class C PFCs Vinyladiene chloride
Class C PFCs Vinyl chloride (gas)
Class C PFCs Vinyl pyridine
Class D PFCs Acrolein
Class D PFCs Allyl ether
Class D PFCs Allyl ethyl ether
Class D PFCs p-(n-Amyloxy)benzoyl chloride
Class D PFCs n-Amyl ether
Class D PFCs Benzyl n-butyl ether
Class D PFCs Benzyl ether
Class D PFCs Benzyl ethyl ether
Class D PFCs Benzyl methyl ether
Class D PFCs Benzyl-1-naphthyl ether
Class D PFCs 1,2-Bis(2-chloroethoxyl)ethane
Class D PFCs Bis(2-ethoxyethyl)ether
Class D PFCs Bis(2-(methoxyethoxy)ethyl) ether
Class D PFCs Bis(2-chloroethyl) ether
Class D PFCs Bis(2-ethoxyethyl) adipate
Class D PFCs Bis(2-methoxyethyl) carbonate
Class D PFCs Bis(2-methoxyethyl) ether
Class D PFCs Bis(2-methoxyethyl) phthalate
Class D PFCs Bis(2-methoxymethyl) adipate
Class D PFCs Bis(2-n-butoxyethyl) phthalate
Class D PFCs Bis(2-phenoxyethyl) ether
Class D PFCs Bis(4-chlorobutyl) ether
Class D PFCs Bis(chloromethyl) ether
Class D PFCs 2-Bromomethyl ethyl ether
Class D PFCs beta-Bromophenetole
Class D PFCs o-Bromophenetole
Class D PFCs p-Bromophenetole
Class D PFCs 3-Bromopropyl phenyl ether
Class D PFCs tert-Butyl methyl ether
Class D PFCs n-Butyl phenyl ether
Class D PFCs n-Butyl vinyl ether
Class D PFCs Chloroacetaldehyde diethylacetal
Class D PFCs 2-Chlorobutadiene
Class D PFCs 1-(2-Chloroethoxy)-2-phenoxyethane
Class D PFCs Chloroethylene
Class D PFCs Chloromethyl methyl ether
Class D PFCs beta-Chlorophenetole
Class D PFCs o-Chlorophenol
Class D PFCs p-Chlorophenetole
Class D PFCs Cyclooctene
Class D PFCs Cyclopropyl methyl ether
Class D PFCs Diallyl ether
Class D PFCs p-Di-n-butoxybenzene
Class D PFCs 1,2-Dibenzyloxyethane
Class D PFCs p-Dibenzyloxybenzene
Class D PFCs 1,2-Dichloroethyl ethyl ether
Class D PFCs 2,4-Dichlorophenetole
Class D PFCs Diethoxymethane
Class D PFCs 2,2-Diethoxypropane
Class D PFCs Diethyl ethoxymethylenemalonate
Class D PFCs Diethyl fumarate
Class D PFCs Diethyl acetal
Class D PFCs Diethylketene
Class D PFCs Diethoxybenzene (m-,o-,p-)
Class D PFCs 1,2-Diethoxyethane
Class D PFCs Dimethoxymethane
Class D PFCs 1,1-Dimethoxyethane
Class D PFCs Di(1-propynl) ether
Class D PFCs Di(2-propynl) ether
Class D PFCs Di-n-propoxymethane
Class D PFCs 1,2-Epoxy-3-isopropoxypropane
Class D PFCs 1,2-Epoxy-3-phenoxypropane
Class D PFCs p-Ethoxyacetophenone
Class D PFCs 1-(2-Ethoxyethoxy)ethyl acetate
Class D PFCs 2-Ethoxyethyl acetate
Class D PFCs (2-Ethoxyethyl)-a-benzoyl benzoate
Class D PFCs 1-Ethoxynaphthalene
Class D PFCs o,p-Ethoxyphenyl isocyanate
Class D PFCs 1-Ethoxy-2-propyne
Class D PFCs 3-Ethoxypropionitrile
Class D PFCs 2-Ethylacrylaldehyde oxime
Class D PFCs 2-Ethylbutanol
Class D PFCs Ethyl-b-ethoxypropionate
Class D PFCs Ethylene glycol monomethyl ether
Class D PFCs 2-Ethylhexanal
Class D PFCs Ethyl vinyl ether
Class D PFCs 2,5-Hexadiyn-1-ol
Class D PFCs 4,5-Hexadien-2-yn-1-ol
Class D PFCs n-Hexyl ether
Class D PFCs o.p-Iodophenetole
Class D PFCs Isoamyl benzyl ether
Class D PFCs Isoamyl ether
Class D PFCs Isobutyl vinyl ether
Class D PFCs Isophorone
Class D PFCs b-Isopropoxypropionitrile
Class D PFCs Isopropyl-2,4,5-trichlorophenoxy acetate
Class D PFCs n-Methylphenetole
Class D PFCs 2-Methyltetrahydrofuran
Class D PFCs 3-Methoxy-1-butyl acetate
Class D PFCs 2-Methoxyethanol
Class D PFCs 2-Methoxyethyl acetate
Class D PFCs 3-Methoxybutyl acetate
Class D PFCs 2-Methoxyethyl vinyl ether
Class D PFCs Methoxy-1,3,5,7-cyclooctatetraene
Class D PFCs b-Methoxypropionitrile
Class D PFCs m-Nitrophenetole
Class D PFCs 1-Octene
Class D PFCs Oxybis(2-ethyl acetate)
Class D PFCs Oxybis(2-ethyl benzoate)
Class D PFCs b,b-Oxydipropionitrile
Class D PFCs 1-Pentene
Class D PFCs Phenoxyacetyl chloride
Class D PFCs a-Phenoxypropionyl chloride
Class D PFCs Phenyl-o-propyl ether
Class D PFCs p-Phenylphenetone
Class D PFCs n-Propyl ether
Class D PFCs n-Propyl isopropyl ether
Class D PFCs Sodium 8-11-14-eicosatetraenoate
Class D PFCs Sodium ethoxyacetylide
Class D PFCs Tetrahydropyran
Class D PFCs Triethylene glycol diacetate
Class D PFCs Triethylene glycol dipropionate
Class D PFCs 1,3,3-Trimethoxypropene
Class D PFCs 1,1,2,3-Tetrachloro-1,3-butadiene
Class D PFCs 4-Vinyl cyclohexene
Class D PFCs Vinylene carbonate

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health hazard symbol Regulated Carcinogens

Chemical
Formaldehyde
Methylenedianiline
Vinyl Chloride
Arsenic (Inorganic)
Cadmium
Benzene
1,3-Butadiene
Methylene chloride
4,4-Methyenedianiline
Acrylonitrile
Beryllium
1,2 Dibromo-3-Chloropropane
Ethylene Dibromide
Ethylene Oxide
Nitrous oxide
Isoflurane
Desflurane
Enflurane
Halothane
Sevoflurane