Heptane, straight and branched isomers
CAS Number
142-82-5, 590-35-2, 565-59-3, 108-08-7, 562-49-2, 591-76-4, 31394-54-4, 589-34-4, 617-78-7, 464-06-2
Last Revised
2025
TWA Limit
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STEL
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Ceiling Limit
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Notes & Notations
- For isomers with CAS numbers 108-08-7, 142-82-5, 565-59-3, 589-34-4, 590-35-2, and 591-76-4, see exposure limits for Heptane, Isomers
- No British Columbia exposure limit at this time. Check if this substance has other exposure limits or designations / health hazard notations.
Synonyms:
Dipropylmethane; Trimethylbutane; Dimethylpentane
;C7H16
IDLH:
750 ppm, for n-Heptane
(Source: NIOSH)
If the substance you are searching has an entry that contains a size-selective fraction, form, or work activity, you should perform an additional search to confirm if other exposure limits may apply.
Ensure no workers are exposed to a substance that exceeds the exposure limits in accordance with OHSR 5.48.
Ensure no workers are exposed to a substance that exceeds the exposure limits in accordance with OHSR 5.48.