872-50-4 N-Methylpyrrolidone

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CAS 872-50-4 -

CAS Number:  872-50-4

Chemical Name:  N-Methylpyrrolidone

Type of Toxicity:  developmental

Listing Mechanism:  Authoritative Bodies (AB)

Learn more about why N-Methylpyrrolidone is on the proposition 65 list (PDF)

Date Listed:  15-Jun-01

NSRL (No Significant Risk Level) or MADL (Maximum Allowable Dose Level):  3200 (inhalation) 17000 (dermal) 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 N-Methylpyrrolidone related to these safe harbor levels (PDF)

Chemical Formula:  C5H9NO

EC Number (EINECS):  212-828-1

Synonyms:  M-Pyrol;N-Methyl-«alpha»-pyrrolidinone;N-Methyl-«alpha»-pyrrolidone;N-Methyl-«gamma»-butyrolactam;N-Methyl-2-pyrrolidinone;N-Methyl-2-pyrrolidone;N-Methylpyrrolidinone;N-Methylpyrrolidone;NMP;1-Methyl-2-Pyrrolidinone;1-Methyl-2-pyrrolidone;1-Methyl-5-pyrrolidinone;1-Methylpyrrolidinone;2-Pyrrolidone, 1-methyl-;1-Methylazacyclopentane-2-one;1-Methylpyrrolidone;N-Methylpyrrolidone-(2);N-Methylpyrrolid-2-one;Methy

Appearance:  colourless or light yellow liquid with an amine odour

Melting Point:  -23 C

Boiling Point:  202 C

Flash Point:  95 C

Explosion Limits:  1.3 - 9.5 %

Water Solubility:  > 10% w/w at 20 C

Stability:  Stable, but decomposes upon exposure to light. Combustible. Incompatible with strong oxidizing agents, strong acids, reducing agents, bases.

Molecular Weight:  99.1311

More info:  N-methylpyrrolidone CAS 872-50-4...

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