2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane

Modify Date: 2025-08-20 18:55:52

2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane Structure
2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane structure
 Common Name 2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane
CAS Number 78-63-7 Molecular Weight 290.439
Density 0.9±0.1 g/cm3 Boiling Point 306.5±25.0 °C at 760 mmHg
Molecular Formula C16H34O4 Melting Point 6 °C
MSDS USA Flash Point 106.1±23.1 °C
Symbol GHS02 GHS07 GHS08
GHS02, GHS07, GHS08		 Signal Word Danger

 Names

Name 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.9±0.1 g/cm3
Boiling Point 306.5±25.0 °C at 760 mmHg
Melting Point 6 °C
Molecular Formula C16H34O4
Molecular Weight 290.439
Flash Point 106.1±23.1 °C
Exact Mass 290.245697
PSA 36.92000
LogP 5.93
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.435
InChIKey DMWVYCCGCQPJEA-UHFFFAOYSA-N
SMILES CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C
Stability Unstable. May contain an inhibitor. Incompatible with strong oxidizing agents, acids, reducing agents, organic materials, powdered metals.
Water Solubility immiscible

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
MO1835000
CHEMICAL NAME :
Hexane, 2,5-dimethyl-2,5-di(t-butylperoxy)-
CAS REGISTRY NUMBER :
78-63-7
LAST UPDATED :
199709
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C16-H34-O4
MOLECULAR WEIGHT :
290.50
WISWESSER LINE NOTATION :
1X1&1&OOX1&1&2X1&1&OOX1&1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>3200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BSPII* SPI Bulletin. (Soc. of the Plastics Industry, 250 Park Ave., New York, NY 10017) Volume(issue)/page/year: 1/75-19B
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
1700 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BSPII* SPI Bulletin. (Soc. of the Plastics Industry, 250 Park Ave., New York, NY 10017) Volume(issue)/page/year: 1/75-19B *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M3035 No. of Facilities: 60 (estimated) No. of Industries: 2 No. of Occupations: 13 No. of Employees: 836 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M3035 No. of Facilities: 514 (estimated) No. of Industries: 7 No. of Occupations: 16 No. of Employees: 14979 (estimated) No. of Female Employees: 7853 (estimated)

 Safety Information

Symbol GHS02 GHS07 GHS08
GHS02, GHS07, GHS08
Signal Word Danger
Hazard Statements H242-H315-H341
Precautionary Statements P210-P220-P234-P280-P370 + P378
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes O:Oxidizingagent;Xi:Irritant;
Risk Phrases R10;R36/38;R7
Safety Phrases S7-S17-S36/37/39-S3/7-S26-S14A-S47-S14
RIDADR UN 3108 5.2
WGK Germany 1
RTECS MO1835000
Packaging Group II
Hazard Class 5.2

 Synthetic Route

2,5-Dimethyl-2,5-bis-(hydroperoxy)hexane structure

2,5-Dimethyl-2,...

CAS#:3025-88-5

tert-Butanol structure

tert-Butanol

CAS#:75-65-0

~%

2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane Structure

2,5-Bis(tert-bu...

CAS#:78-63-7

Literature: US2009/187048 A1, ; Page/Page column 3-4 ;

 Precursor & DownStream

Precursor  2

DownStream  0

 Synonyms

VAROX DBPH
Di-tert-butyl 1,1,4,4-tetramethyltetramethylene diperoxide
ad40c
luperox101
Peroxide, (1,1,4,4-tetramethyl-1,4-butanediyl)bis[(1,1-dimethylethyl)
varox50
MFCD00053715
perhexa25b
kayahexaad
2,5-Dimethyl-2,5-di(tert-butyl peroxy)hexane
1X1&1&OOX1&1&2X1&1&OOX1&1&1
DPDH
2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane
Trigonox 101
EINECS 201-128-1
2,5-Dimethyl-2,5-bis[(2-methyl-2-propanyl)peroxy]hexane
cr05
luperox
varox
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Chemsrc provides CAS#:78-63-7 MSDS, density, melting point, boiling point, structure, etc. Its name is 2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane>> amp version: 2,5-Bis(tert-butylperoxy)-2,5-dimethylhexane

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