;

Halothane

CAS numbers: 151-67-7

Helium

CAS numbers: 7440-59-7

Heptane (n-Heptane)

CAS numbers: 142-82-5

2-Heptanone

Alternative names: methyl n-amyl ketone
CAS numbers: 110-43-0

Hexachlorocyclopentadiene

CAS numbers: 77-47-4

Hexachloroethane

CAS numbers: 67-72-1

Hexafluoroacetone

CAS numbers: 684-16-2

Hexamethylene diisocyanate, as -NCO

Alternative names: HDI
CAS numbers: 822-06-0

Hexane (n-Hexane)

CAS numbers: 110-54-3

Hexane, Other isomers

CAS numbers: 110-54-3

2-Hexanone

Alternative names: methyl n-butyl ketone
CAS numbers: 591-78-6

sec-Hexyl acetate

Alternative names: 1,3-dimethylbutyl acetate
CAS numbers: 108-84-9

Hexylene glycol

CAS numbers: 107-41-5

Hydrazine

CAS numbers: 302-01-2

Hydrogen

CAS numbers: 1333-74-0

Hydrogen bromide

CAS numbers: 10035-10-6

Hydrogen chloride

CAS numbers: 7647-01-0

Hydrogen cyanide

CAS numbers: 74-90-8

Hydrogen fluoride, as F

Alternative names: fluorane, hydrofluoride
CAS numbers: 7664-39-3

Hydrogen peroxide

CAS numbers: 7722-84-1

Hydrogen sulphide

Alternative names: hydrosulphuric acid, stink DAMP, sewer gas, H2S
CAS numbers: 7783-06-4

Hydrogenated terphenyls

CAS numbers: 61788-32-7

Hydroquinone

Alternative names: dihydroxybenzene, 1,4-benzenediol, 1,4-dihydroxybenzene
CAS numbers: 123-31-9

2-Hydroxypropyl acrylate

CAS numbers: 999-61-1