2,5-Di(tert-amyl)hydroquinone

Modify Date: 2025-08-25 13:12:43

2,5-Di(tert-amyl)hydroquinone Structure
2,5-Di(tert-amyl)hydroquinone structure
 Common Name 2,5-Di(tert-amyl)hydroquinone
CAS Number 79-74-3 Molecular Weight 250.37600
Density 0.99 g/cm3 Boiling Point 364.8ºC at 760 mmHg
Molecular Formula C16H26O2 Melting Point 179 °C
MSDS N/A Flash Point 162.7ºC

 Names

Name 2,5-Di-tert-pentylbenzene-1,4-diol
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.99 g/cm3
Boiling Point 364.8ºC at 760 mmHg
Melting Point 179 °C
Molecular Formula C16H26O2
Molecular Weight 250.37600
Flash Point 162.7ºC
Exact Mass 250.19300
PSA 40.46000
LogP 4.47300
Index of Refraction 1.513

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
MX6300000
CHEMICAL NAME :
Hydroquinone, 2,5-di-tert-pentyl-
CAS REGISTRY NUMBER :
79-74-3
BEILSTEIN REFERENCE NO. :
2214556
LAST UPDATED :
199710
DATA ITEMS CITED :
10
MOLECULAR FORMULA :
C16-H26-O2
MOLECULAR WEIGHT :
250.42
WISWESSER LINE NOTATION :
2X1&1&R BQ EQ DX2&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 :
2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IPSTB3 International Polymer Science and Technology. (Rapra Technology Ltd., Shawbury, Shrewsbury, Shropshire SY4 4NR, UK) Volume(issue)/page/year: 3,93,1976
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>3200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
KODAK* Kodak Company Reports. (343 State St., Rochester, NY 14650) Volume(issue)/page/year: 21MAY1971
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
200 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
IPSTB3 International Polymer Science and Technology. (Rapra Technology Ltd., Shawbury, Shrewsbury, Shropshire SY4 4NR, UK) Volume(issue)/page/year: 3,93,1976 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 38670 No. of Facilities: 93 (estimated) No. of Industries: 1 No. of Occupations: 7 No. of Employees: 1692 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 38670 No. of Facilities: 1330 (estimated) No. of Industries: 10 No. of Occupations: 22 No. of Employees: 17140 (estimated) No. of Female Employees: 3904 (estimated)

 Safety Information

RTECS MX6300000
Packaging Group II; III
Hazard Class 4.1

 Synthetic Route

2-Methylbut-2-ene structure

2-Methylbut-2-ene

CAS#:513-35-9

Hydroquinone structure

Hydroquinone

CAS#:123-31-9

~90%

2,5-Di(tert-amyl)hydroquinone Structure

2,5-Di(tert-amy...

CAS#:79-74-3

Literature: GREAT LAKES CHEMICAL (EUROPE) GMBH Patent: WO2005/14568 A2, 2005 ; Location in patent: Page/Page column 6-8; 11 ;
tert-Amyl Alcohol structure

tert-Amyl Alcohol

CAS#:75-85-4

Hydroquinone structure

Hydroquinone

CAS#:123-31-9

~80%

2,5-Di(tert-amyl)hydroquinone Structure

2,5-Di(tert-amy...

CAS#:79-74-3

Literature: Paula, Stefan; Abell, Josh; Deye, Joel; Elam, Christopher; Lape, Michael; Purnell, Justin; Ratliff, Robert; Sebastian, Kelly; Zultowsky, Jodie; Kempton, Robert J. Bioorganic and Medicinal Chemistry, 2009 , vol. 17, # 18 p. 6613 - 6619
Hydroquinone structure

Hydroquinone

CAS#:123-31-9

~%

2,5-Di(tert-amyl)hydroquinone Structure

2,5-Di(tert-amy...

CAS#:79-74-3

Literature: Chemische Berichte, , vol. 24, p. 3894 Chemische Berichte, , vol. 25, p. 2650
2,5-di-tert-amylbenzoquinone structure

2,5-di-tert-amy...

CAS#:4584-63-8

acetic acid structure

acetic acid

CAS#:64-19-7

~%

2,5-Di(tert-amyl)hydroquinone Structure

2,5-Di(tert-amy...

CAS#:79-74-3

Literature: Chemische Berichte, , vol. 25, p. 2650
2-Methylbut-2-ene structure

2-Methylbut-2-ene

CAS#:513-35-9

Sulfuric acid structure

Sulfuric acid

CAS#:7664-93-9

acetic acid structure

acetic acid

CAS#:64-19-7

Hydroquinone structure

Hydroquinone

CAS#:123-31-9

~%

Detail
Literature: Chemische Berichte, , vol. 24, p. 3894 Chemische Berichte, , vol. 25, p. 2650

 Synonyms

MFCD00027029
EINECS 201-222-2
2,5-Di(tert-amyl)hydroquinone
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