3068-88-0 beta-Butyrolactone

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CAS 3068-88-0 -

CAS Number:  3068-88-0

Chemical Name:  beta-Butyrolactone

Type of Toxicity:  cancer

Listing Mechanism:  State's Qualified Experts (SQE)

Date Listed:  1-Jul-87

NSRL (No Significant Risk Level) or MADL (Maximum Allowable Dose Level):  0.7 µg/day

Where a source or product results in exposures by multiple routes, the total exposure must be considered. For example, the MADL for benzene is exceeded when the absorbed dose exceeds 24 µg/day. If only inhalation and oral exposure occurs, the benzene MADL is exceeded when: (oral dose ÷ 24 µg/day) + (inhalation dose ÷ 49 µg/day) > 1.0.

View risk assessment documentation for beta-Butyrolactone related to these safe harbor levels (PDF)

Chemical Formula:  C4H6O2

EC Number (EINECS):  221-330-3

Synonyms:  2-Oxetanone, 4-methyl-;«beta»-Butyrolactone;«beta»-Butyrolakton;3-Hydroxybutanoic acid, «beta»-lactone;Hydroxybutyric acid lactone;3-Hydroxybutyric acid lactone;3-Hydroxybutyric acid, «beta»-lactone;Butanoic acid, 3-hydroxy-, beta-lactone

Appearance:  colourless liquid

Melting Point:  -43.5 C

Flash Point:  60 C

Stability:  Stable. Incompatible with strong bases, strong oxidizing agents. Flammable.

Molecular Weight:  86.0892

More info:  dl-beta-hydroxybutyric acid lactone CAS 3068-88-0...

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