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179981

Sigma-Aldrich

Luperox® A98, Benzoyl peroxide

reagent grade, ≥98%

Synonym(s):

Benzoyl peroxide, Dibenzoyl peroxide

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500 G
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Estimated to ship onMarch 31, 2025

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50 G
$45.00
500 G
$123.00

About This Item

Linear Formula:
(C6H5CO)2O2
CAS Number:
94-36-0
Molecular Weight:
242.23
Beilstein/REAXYS Number:
984320
EC Number:
202-327-6
MDL number:
MFCD00003071
UNSPSC Code:
12352100
PubChem Substance ID:
57647701
NACRES:
NA.21
form:
solid
assay:
≥98%

$45.00

Estimated to ship onMarch 31, 2025

Request a Bulk Order

grade

reagent grade

Quality Level

200

assay

≥98%

form

solid

autoignition temp.

176 °F

reaction suitability

reagent type: oxidant

mp

105 °C (lit.)

functional group

peroxide
phenyl

SMILES string

O=C(OOC(=O)c1ccccc1)c2ccccc2

InChI

1S/C14H10O4/c15-13(11-7-3-1-4-8-11)17-18-14(16)12-9-5-2-6-10-12/h1-10H

InChI key

OMPJBNCRMGITSC-UHFFFAOYSA-N

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General description

Benzoyl peroxide participates in the covalent insitu functionalization of carbon nanotubes. On heating, it undergoes decomposition to afford phenyl free radicals and CO2 gas.[1]
Luperox® A98, Benzoyl peroxide, an anhydrous benzoyl peroxide powder, is a mainly used as a thermal free radical initiator in polymerization reactions.

Application

Benzoyl peroxide has been used as an initiator in the preparation of the following:
  • Thermal cross-linking of multiwalled carbon nanotubes (MWCNTs) via radical-initiated reaction[1]
  • 3-D crosslinked carbon scaffolds[1]
  • poly(lactic-co-glycolic) acid (PLGA), MWCNT and singlewalled carbon nanotubes (SWCNT) scaffolds[2]
Widely used initiator, curing agent, and cross-linking agent in polymerization processes.

Legal Information

Product of Arkema Inc.
Luperox is a registered trademark of Arkema Inc.

signalword

Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Org. Perox. B - Skin Sens. 1A

Storage Class

4.1A - Other explosive hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCS1251
MKCS1229
MKCS1228
MKCS1250
MKCS1252

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Gaurav Lalwani et al.
Carbon, 53, 90-100 (2013-02-26)
We report a simple method to fabricate macroscopic, 3-D, free standing, all-carbon scaffolds (porous structures) using multiwalled carbon nanotubes (MWCNTs) as the starting materials. The scaffolds prepared by radical initiated thermal crosslinking, and annealing of MWCNTs possess macroscale interconnected pores
Suzanne M Jervis et al.
Journal of food science, 78(2), R129-R137 (2013-01-22)
Whey is a value-added product that is utilized in many food and beverage applications for its nutritional and functional properties. Whey and whey products are generally utilized in dried ingredient applications. One of the primary sources of whey is from
Kate McKeage et al.
American journal of clinical dermatology, 9(3), 193-204 (2008-04-24)
Clindamycin 1%/benzoyl peroxide 5% (BenzaClin) is a combination gel indicated for use twice daily, or as directed by a physician, for the topical treatment of inflammatory and noninflammatory lesions of acne vulgaris. In well designed clinical trials in patients with
A L Kraus et al.
Regulatory toxicology and pharmacology : RTP, 21(1), 87-107 (1995-02-01)
Topical benzoyl peroxide has been used in the treatment of acne for over 30 years, with no reports of adverse effects that could be related to skin carcinogenesis. Two case-control epidemiological studies have found a lack of association between the
Tarek Fakhouri et al.
Journal of drugs in dermatology : JDD, 8(7), 657-661 (2009-07-11)
Antibiotic resistance of Propionibacterium acnes (P. acnes) is a growing phenomenon in the wake of widespread use of topical and systemic antibiotics for acne vulgaris. Benzoyl peroxide has a proven track record of safety and efficacy, and can decrease reliance
View All Related Papers

Questions

  1. What analytical procedure is used to evaluate the purity of Luperox® A98, Benzoyl peroxide (#179981)?

    1 answer

    1. This item is a product of Arkema. The manufacturer considers the assay method proprietary. However, the protocol is based on the following reference:
      Atochem Research Notebook 7032: 3, 5
      A. G. McFarland, Research Progress Report: "Iodometric Determination of Benzoyl Peroxide", 2/18/91

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