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.
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OSHA Chemical Data Table
Chemical Name CAS # Analyte code (IMIS #) Synonyms
1,5-NAPHTHENE DIISOCYANATE 3173-72-6
  • N119

1,5-diisocyanatonaphthalene; 1,5-naphthalene diisocyanate; 1,5-naphthalene ester of isocyanic acid; NDI

108-03-2
  • 1940
 

nitropropane; 1-NP

79-46-9
  • 1941

dimethylnitromethane; iso-nitropropane; 2-NP; sec-nitropropane

92-93-3
  • 1875
 
 

p-nitrobiphenyl; p-nitrodiphenyl; p-phenylnitrobenzene; 4-phenylnitrobenzene; PNB

5-NITRO-2-FURALDEHYDE SEMICARBAZONE 59-87-0
  • N905
 

nitrofurazone

N-NITROSO-N-PROPYL-N-BUTYLAMINE 25413-64-3
  • N805

NPBA; 1-butanamine, N-nitroso-N-propyl; butylamine, N-nitroso-N-propyl; N-propyl-N-butylnitrosoamine

N-NITROSODIAMYLAMINE 13256-06-9
  • N705

NDAmA; di-n-pentylnitrosamine; di-n-amylnitrosamine; dipentylamine, N-nitroso-

N-NITROSODIBUTYLAMINE 924-16-3
  • 1944

butylamine, N-nitrosodi; N-butyl-N-nitroso-1-butamine; DBN; DBNA; dibutylamine, N-nitroso; dibutylnitrosamine; di-n-butylnitrosamine; N,N-di-n-butylnitrosamine; NDBA; N-nitroso-di-n-butylamine

N-NITROSODIETHANOLAMINE 1116-54-7
  • 0907

NDELA; DELNA; 2,2'-iminodi-N-nitrosoethanol; bis(β-hydroxyethyl)nitrosamine; nitrosoiminodiethanol; 2,2'-(nitrosoimino) bis[ethanol]; N-nitrosobis(2-hydroxyethyl)amine; NCI-C55583; diethylamine, 2,2'-dihydroxy-N-nitroso; diethanolnitrosamine

N-NITROSODIETHYLAMINE 55-18-5
  • 1947

NDEA; DENA; DEN; DANA; diethylnitrosamine; diethylnitroso-amine; N,N-diethylnitrosamine; ethylamine, N-nitrosdi; N-ethyl-N-nitroso-ethanamine; nitrosodiethylamine

N-NITROSODIISOPROPYLAMINE 601-77-4
  • N706

NDiPA; diisopropylamine, N-nitroso

62-75-9
  • 1942

dimethylnitrosamine; N,N-dimethylnitrosamine; DMNA; N-methyl-N-nitroso-methanamine; NDMA; N-nitroso-N,N-dimethylamine, nitrosodimethylamine

N-NITROSODIPHENYLAMINE 86-30-6
  • N109

NDPA; diphenyl nitrosamine; Redax; Vulcatard; NDFA

N-NITROSODIPROPYLAMINE 621-64-7
  • 1948

NDPA; di-n-propylnitrosamine; N-nitrosodi-n-propylamine; DPNA; DPN; N-nitroso-N-propyl-1-propanamine; propylamine, N-nitroso-N-di; dipropylnitrosamine; N-propyl-N-nitrosopropylamine

N-NITROSOETHYL-N-BUTYLAMINE 4549-44-4
  • N707

NEBA; N-ethyl-N-nitrosobutylamine; butylamine, N-ethyl-N-nitroso-; butanamine, N-ethyl-N-nitroso-; ethyl-n-butylnitrosamine; N-nitroso-n-butylethylamine

N-NITROSOMETHYL-N-BUTYLAMINE 7068-83-9
  • N708

NMBA; MBNA; butylamine, N-methyl-N-nitroso-; butanamine, N-methyl-N-nitroso-; methylbutylnitrosamine; methyl-n-butylnitrosamine; N-methyl-N-nitrosobutylamine; N-nitroso-n-butylmethylamine; nitrosomethyl-n-butylamine

N-NITROSOMETHYLETHYLAMINE 10595-95-6
  • N709
 

NMEA; NEMA; ethylamine, N-Methyl-N-nitroso; ethylmethylnitrosamine; N,N-methylethylnitrosamine; N-methyl-N-nitrosoethylamine; N-nitrosoethylmethylamine; N-methyl-N-nitroso-ethanamine

N-NITROSOMORPHOLINE 59-89-2
  • 1943

NMOR

N-NITROSOPIPERIDINE 100-75-4
  • 1949
 

NPIP; NO-Pip; 1-nitrosopiperidine

N-NITROSOPYRROLIDINE 930-55-2
  • 1950

NO-Pyr; NPYR; 1-nitroso-pyrrolidine; N-N-Pyr

8030-30-6
  • 0710
 

crude solvent coal tar naphtha; solvent naphtha (coal)

91-20-3
  • 1810
 

diesel exhaust component; white tar; naphthalin; tar camphor

13463-39-3
 

nickel tetracarbonyl; tetracarbonyl nickel

7440-02-0
  • 1840

nickel metal; elemental nickel; nickel catalyst; nickel subsulfide; raney nickel; Other synonyms vary depending upon the specific nickel compound.

7440-02-0
  • 1842
 

nickel metal; elemental nickel; nickel catalyst; nickel subsulfide; raney nickel; Other synonyms vary depending upon the specific nickel compound.

54-11-5
  • 1855
 

3-(1-methyl-2-pyrrolidyl)pyridine

7697-37-2
  • 1860
 

aqua fortis; spirit of niter; engravers acid; white fuming nitric acid (WFNA); red fuming nitric acid (RFNA); hydrogen nitrate

10102-43-9
  • 1890
 

mononitrogen monoxide; nitrogen monoxide

98-95-3
  • 1870
 

essence of mirbane; nitrobenzol; oil of mirbane

79-24-3
  • 1880
 

 

10102-44-0
  • 1903
 

diesel exhaust component, dinitrogen tetroxide (N₂O₄), NO₂, nitrogen peroxide, nitrogen tetroxide

NITROGEN TRICHLORIDE 10025-85-1
 

agene; chlorine nitride; trichloramine; trichlorine nitride

7783-54-2
  • 1907
 

nitrogen fluoride; trifluoramine; trifluorammonia

55-63-0
  • 1912
 

glyceryl trinitrate; NG; 1,2,3-propanetriol trinitrate; trinitroglycerine

75-52-5
  • 1920
 

nitrocarbol

99-08-1; 99-99-0; 88-72-2; 1321-12-6
  • 1945
 

m-methylnitrobenzene; 3-methylnitrobenzene; meta-nitrotoluene; 3-nitrotoluene, p-methylnitrobenzene; 4-methylnitrobenzene; para-nitrotoluene; 4-nitrotoluene; o-methylnitrobenzene; 2-methylnitrobenzene; ortho-nitrotoluene; 2-nitrotoluene

NITROUS OXIDE 10024-97-2
  • 1953
 

dinitrogen monoxide; hyponitrous acid anhydride; laughing gas; nitrogen oxide

NONANE 111-84-2
  • N807

n-nonane; nonyl hydride

NORETHINDRONE 68-22-4
  • N608

Micronor; 19-Norethisterone; Conceplan; Anouirle; 17-hydroxy-19-norpregn-4-en-20-yn-3-one; Norlutin; 17-hydroxy-19-nor-17-α-pregn-4-en-20-yn-3-one; NET; anhydrohydroxynorprogestrone

100-01-6
  • 1865

p-aminonitrobenzene; 4-nitroaniline; 4-nitrobenzenamine; p-nitrophenylamine; PNA

100-00-5
  • 1872

p-chloronitrobenzene; 4-chloronitrobenzene; 1-chloro-4-nitrobenzene; 4-nitrochlorobenzene; PCNB; PNCB

P-NITROPHENOL 100-02-7

4-hydroxynitrobenzene; 4-nitrophenol

134-32-7
  • 1815

1-aminonaphthalene; 1-naphthylamine

91-59-8
  • 1815

2-aminonaphthalene; 2-naphthylamine