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Substance Name: 2-Butanone peroxide
RN: 1338-23-4
UNII: W2545087UL
InChIKey: WFUGQJXVXHBTEM-UHFFFAOYSA-N

Note

  • Synthetic product hardener & polyester varnish; methylethylketone peroxide in dimethylphthalate; used as fiberglass hardener; very toxic to eyes.

Molecular Formulas

  • C8-H16-O4
  • Unspecified

Molecular Weight

  • 210.2242
 

Classification Codes

Classification Codes

  • Human Data
  • Skin / Eye Irritant
  • Tumor Data

Superlist Classification Codes

  • Ceiling (0.2 ppm)
  • Reportable Quantity (RQ) = 10 lb
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Names and Synonyms

Name of Substance

  • 2-Butanone peroxide
  • Methyl ethyl ketone peroxide

Synonyms

  • 2-Butanone peroxide
  • Butanox LPT
  • Butanox M 105
  • Butanox M 50
  • CCRIS 6216
  • Chaloxyd MEKP HA 1
  • Chaloxyd MEKP-HA 1
  • Chaloxyd MEKP-LA 1
  • EINECS 215-661-2
  • Esperfoam FR
  • Ethyl methyl ketone peroxide
  • FR 222
  • HI-Point 180
  • HI-Point 90
  • HI-Point PD-1
  • HSDB 4181
  • Kayamek A
  • Kayamek M
  • Ketonox
  • Lucidol DDM 9
  • Lucidol delta X
  • Lupersol DDA 30
  • Lupersol DDM
  • Lupersol DEL
  • Lupersol delta X
  • Lupersol DNF
  • Lupersol DSW
  • MEK peroxide
  • MEKPO
  • Mepox
  • Methyl ethyl ketone hydroperoxide
  • Methyl ethyl ketone peroxide
  • Methylethylketonhydroperoxide
  • NCI-C55447
  • Permek G
  • Permek N
  • Quickset Extra
  • Quickset super
  • RCRA waste number U160
  • Sprayset MEKP
  • Superox 46-710
  • Thermacure
  • Trigonox M 50
  • UNII-W2545087UL

Systematic Name

  • 2-Butanone, peroxide

Superlist Names

  • 2-Butanone peroxide
  • 2-Butanone, peroxide
  • MEKP
  • Methyl ethyl ketone peroxide
  • Methyl ethyl ketone peroxide, in solution with >9% by mass active oxygen
  • Methyl ethyl ketone peroxide, in solution with >9% by mass active oxygen [Forbidden]
  • RCRA waste no. U160

Registry Numbers

CAS Registry Number

  • 1338-23-4

FDA UNII

  • W2545087UL

Other Registry Numbers

  • 1175509-65-5
  • 37228-09-4
  • 37332-21-1
  • 37364-68-4
  • 39386-16-8
  • 50927-89-4
  • 9042-65-3
  • 99676-02-5

System Generated Number

  • 0001338234

Structure Descriptors

InChI

1S/C8H18O6/c1-5-7(3,11-9)13-14-8(4,6-2)12-10/h9-10H,5-6H2,1-4H3

InChIKey

WFUGQJXVXHBTEM-UHFFFAOYSA-N

Smiles

OOC(OOC(OO)(C)CC)(C)CC

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
human TDLo oral 480mg/kg (480mg/kg) GASTROINTESTINAL: CHANGE IN STRUCTURE OR FUNCTION OF ESOPHAGUS

GASTROINTESTINAL: NAUSEA OR VOMITING

GASTROINTESTINAL: OTHER CHANGES
National Clearinghouse for Poison Control Centers, Bulletin. Vol. Jan/Feb, Pg. 1969,
mouse LC50 inhalation 170ppm/4H (170ppm) LUNGS, THORAX, OR RESPIRATION: DYSPNEA American Industrial Hygiene Association Journal. Vol. 19, Pg. 205, 1958.
mouse LD50 oral 470mg/kg (470mg/kg)   JAMA, Journal of the American Medical Association. Vol. 165, Pg. 201, 1957.
rat LC50 inhalation 200ppm/4H (200ppm) LUNGS, THORAX, OR RESPIRATION: DYSPNEA American Industrial Hygiene Association Journal. Vol. 19, Pg. 205, 1958.
rat LD50 intraperitoneal 65mg/kg (65mg/kg) BEHAVIORAL: MUSCLE WEAKNESS

BEHAVIORAL: ATAXIA
American Industrial Hygiene Association Journal. Vol. 19, Pg. 205, 1958.
rat LD50 oral 484mg/kg (484mg/kg)   American Industrial Hygiene Association Journal. Vol. 19, Pg. 205, 1958.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point < 25 deg C   EXP

Physical property data is provided to ChemIDplus by SRC, Inc.