OSHA Occupational Chemical Database

This chemical inventory is OSHA's premier one-stop shop for occupational chemical information. It compiles information from several government agencies and organizations. Information available on the pages includes:

  • Chemical identification and physical properties
  • Exposure limits
  • Sampling information, and
  • Additional resources.

OSHA Standards and Exposure Limits

Employers must comply with a number of standards where employees are potentially exposed to chemical hazards. These include OSHA's Permissible Exposure Limits PELs for about 400 substances, which can be found as follows:

  • General Industry: 29 CFR 1910.1000, Toxic and Hazardous Substances
    • Air contaminants and Z1, Z2, Z3 tables
    • 29 CFR 1910.1001 - 29 CFR 1910.1018
    • 29 CFR 1910.1025- 29 CFR 1910.1053
  • Construction: 29 CFR 1926.1101, Toxic and Hazardous Substances
    • 29 CFR 1926.1101 – 29 CFR 1926.1153
  • Maritime: 29 CFR 1915.1000, Toxic and Hazardous Substances
    • Substance-specific standards

OSHA's PELs are included in the "Exposure Limits" table for individual chemicals in the database. In addition, OSHA has separate substance-specific standards, which can be found in the "Notes" section of the "Exposure Limits" table.

Other OSHA standards that generally apply to hazardous substances include the Hazard Communication standard (1910.1200) and the Respiratory Protection standard (1910.134). Employers may also need to provide personal protective clothing (1910.132) where there is a potential hazard from skin contact with chemicals, or eye and face protection to guard against chemical splashes (1910.133).

 

The results below may be sorted by the chemical name, CAS # or analyte code by clicking on the column heading.
83
OSHA Chemical Data Table
Chemical Name CAS # Analyte code (IMIS #) Synonyms
1-METHOXY-2-PROPANOL 107-98-2
  • 2210

Dowtherm209®; 1-methoxy-2-hydroxypropane; 1-methoxy-2-propanol; 2-methoxy-1-methylethanol; propylene glycol methyl ether

1-METHOXY-2-PROPYL ACETATE 108-65-6
  • P218

1-methoxy-2-acetoxypropane; 2-methoxy-1-methylethyl ester acetic acid; 1-methoxy-2-propanol acetate; 1-methoxy-2-propyl acetate; PGMEA; 1,2-propanediol monomethyl ether acetate; propylene glycol methyl ether acetate; propylene glycol monomethyl ether acetate

1-METHYLNAPHTHALENE 90-12-0
  • M155

α-methylnaphthalene

17-α-METHYL TESTOSTERONE 58-18-4
  • M350

17 β-hydroxy-17 α-methyl-4-androsten-3-one; mesterone; andrometh; 17-methyl testosterone; Nu-man; Testoviron

2-METHOXY-1-PROPANOL 1589-47-5
  • M216

2-methoxypropanol; propylene glycol 2-methyl ether; propylene glycol 2-monomethyl ether; propylene glycol monomethyl ether

2-METHOXY-1-PROPYL ACETATE 70657-70-4
  • M215
 

methoxypropyl acetate; methoxy propyl acetate; 2-methoxy-1-acetoxypropane; MPA; 2-methoxy-1-propanol acetate; acetic acid 2-methoxy propyl ester; 2-methoxy propyl acetate; propylene glycol monomethyl ether acetate (β-isomer)

109-86-4
  • 0590

ethylene glycol monomethyl ether; EGME; glycol monomethyl ether; 2-methoxyethanol; methyl cellosolve

110-49-6
  • 1170

ethylene glycol monomethyl ether acetate; EGMEA; glycol monomethyl ether acetate; Methyl Cellosolve® acetate; 2-methoxyethyl acetate

78-78-4
  • R228

isopentane; ethyldimethylethane; isoamylhydride

2-METHYLBUTYL ACETATE (see also N-AMYL ACETATE) 624-41-9
12108-13-3
 

CI-2; Combustion Improver-2; manganese tricarbonylmethylcyclopentadienyl; 2-methylcyclopentadienyl manganese tricarbonyl; MMT; methylcyclopentadienyl manganese tricarbonyl

2-METHYLNAPHTHALENE 91-57-6
 

β-methylnaphthalene

2-METHYLPENTANE 107-83-5
  • M127

isohexane

3-METHYLPENTANE 96-14-0
  • M337

diethylmethylmethane

4-METHOXYPHENOL 150-76-5
  • M329

hydroquinone monomethyl ether; p-hydroxyanisole; mequinol; p-methoxyphenol; monomethyl ether hydroquinone

M-PHENYLENEDIAMINE (1,3-PHENYLENEDIAMINE) 108-45-2
  • P236

3-aminoaniline; m-benzenediamine; 1,3-benzenediamine; m-diaminobenzene; 1,3-diaminobenzene; 1,3-phenylenediamine; Developer C; Developer H; Developer M; Direct Brown GG; Direct Brown B

M-PHTHALODINITRILE 626-17-5

1,3-benzenedicarbonitrile; m-dicyanobenzene; 1,3-dicyanobenzene; isophthalodinitrile; m-PDN

M-TOLUIDINE 108-44-1
  • T339

3-amino-1-methylbenzene; 1-aminophenylmethane; m-aminotoluene; 3-methylaniline; 3-methylbenzenamine; 3-toluidine; m-tolylamine

M-XYLENE-⍺,⍺'-DIAMINE 1477-55-0
  • 2592

methylamine, m-phenylene bis-; m-phenylene-bis-(methylamine); m-xylylenediamine; 1,3-bis(aminomethyl)benzene; xylenediamine

546-93-0; 13717-00-5
  • 1615 (total); request using analyte code 9135
  • M113 (resp); request using analyte code 9130

carbonate magnesium; hydromagnesite; magnesium carbonate; magnesium(II) carbonate

1309-48-4
  • 1610 (total); request using analyte code 9135

magnesia fume; maglite; magox

121-75-5
  • 1616

S-[1,2-bis(ethoxycarbonyl) ethyl]O,O-dimethyl-phosphorodithioate; diethyl (dimethoxyphosphinothioylthio) succinate

108-31-6
  • 1618

cis-butenedioic anhydride; 2,5-furanedione; maleic acid anhydride; toxilic anhydride

MANEB 12427-38-2
  • M177
 

[ethylene bis(dithiocarbamate)]manganese; manzate

12079-65-1

cyclopentadienylmanganese tricarbonyl; cyclopentadienyl tricarbonyl manganese; MCT

7439-96-5
  • 1620
  • 2587

Manganese metal: Colloidal manganese; Manganese-55 Synonyms of other compounds vary depending upon the specific manganese compound.

MARBLE
1317-65-3
  • 1626 (total); request using analyte code 9135
  • M114 (resp); request using analyte code 9130
 

 

MATERIAL EXAMINATION
  • 8920
 

 

MAXIMUM NORMALIZED DP/DT (EXPLOSIBILITY) (Kst)
  • M102
 

Kst

7439-97-6
  • M111

Synonyms vary depending upon the specific inorganic or aryl mercury compound.

7439-97-6

Synonyms vary depending upon the specific (organo) alkyl mercury compound.

7439-97-6
  • 1631

mercury metal: colloidal mercury; metallic mercury; Quicksilver; elemental mercury

141-79-7
  • 1635

isobutenyl methyl ketone; isopropylideneacetone; methyl isobutenyl ketone; 4-methyl-3-penten-2-one

MESTRANOL 72-33-3
  • M305

3-methoxy-17-⍺-19-norpregna-1,3,5(10)-trien-20-yn-17-ol; Compound 33355; 𝛿-MVE

METHACRYLIC ACID 79-41-4
  • M339

methacrylic acid (glacial); methacrylic acid (inhibited); α-methacrylic acid; 2-methylacrylic acid; 2-methylpropenoic acid

METHIDATHION 950-37-8
  • M105

Ultracide (TM); Supracide (TM); somonil; Fisons NC 2964; DMTP; ENT 27193

METHOMYL 16752-77-5
  • 1644
 

Lannate; methyl N-((methylamino)carbonyl)oxy)ethanimidothioate; S-methyl-N-(methylcarbamoyloxy)thioacetimidate

METHOTREXATE 59-05-2
  • M106

amethopterin; 4-amino-l0-methylfolic acid; 1-glutamic acid, N-(4-(((2,4-diamino-6-pteridinyl)methyl)methylamino))benzoyl; glutamic acid, N-(p-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl)-, L; methopterin; amethopterine; HDMTX; MTX; L-N-(p-(((2,4-diamino-6-pteridinyl)methyl)methylamino)benzoyl) glutamic acid

72-43-5
  • 1646
 

p,p'-dimethoxydiphenylftrichloroethane; DMDT; methoxy-DDT; 2,2-bis(p-methoxyphenyl)-1,1,1-trichloroethane; 1,1,1-trichloro-2,2-bis-(p-methoxyphenyl)ethane

110-43-0
  • 1675

amyl methyl ketone; n-amyl methyl ketone; 2-heptanone

METHYL 2-CYANOACRYLATE 137-05-3
  • 1735
 

mecrylate; methyl cyanoacrylate; methyl ⍺-cyanoacrylate; methyl ester of 2-cyanoacrylic acid; 2-propenoic acid-2-cyano-methyl ester; methyl ester

79-20-9
  • 1650
 

methyl ester of acetic acid; methyl ethanoate; methyl acetic ester

74-99-7
 

allylene; propine; propyne; 1-propyne

59355-75-8
  • 1652

MAPP gas; methyl acetylene-allene mixture; propadiene-methyl acetylene; propyne-allene mixture; propyne-propadiene mixture

96-33-3
  • 1653

methoxycarbonylethylene; methyl acrylate, inhibited; methyl ester of acrylic acid; methyl propenoate

METHYL ACRYLONITRILE 126-98-7
 

2-cyanopropene-1, 2-cyano-1-propene; isoprene cyanide; isopropenylnitrile; methacrylonitrile; à-methylacrylonitrile; 2-methylpropenenitrile

67-56-1
  • 1660

carbinol; columbian spirits; methanol; pyroligneous spirit; wood alcohol; wood naphtha; wood spirit

74-83-9
  • 1680

bromomethane; monobromomethane

74-87-3
  • 1710

chloromethane; monochloromethane

71-55-6
  • 1720

chlorothene; 1,1,1-trichloroethane; 1,1,1-trichloroethane (stabilized)