2,5-二叔戊基氢醌

Description

2,5-Di-tert-amylhydroquinone · CAS 79-74-3 · C16H26O2. UNII 19O4J76TTK. Melting Point: 179.4-180.4 °C; Density: 1.05 @ 25 °C.

Identification

CAS Registry Number	79-74-3
PubChem CID	6610
Molecular formula	C16H26O2
IUPAC name	2,5-bis(2-methylbutan-2-yl)benzene-1,4-diol
UNII (FDA)	19O4J76TTK

Computed Descriptors

Molecular Weight	250.38
XLogP3	5.6
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	4
Exact Mass	250.193280068
Monoisotopic Mass	250.193280068
Topological Polar Surface Area	40.5
Heavy Atom Count	18
Formal Charge	0

Physical & Chemical Properties

Melting Point	179.4-180.4 °C
Density	1.05 @ 25 °C

Physical description & handling notes

• Dry Powder
• Beige solid; [HSDB]
• CRYSTALS
• BUFF POWDER
• SLIGHTLY SOL IN WATER; SOL IN ALCOHOL & BENZENE

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS CIR / INCI: Antioxidant

GHS Hazard Classification

Reported hazard statements	H302 (100%), H317 (29.6%), H400 (98.8%), H410 (98.8%), H371

Documented Uses

• Used as an antioxidant for uncured rubber and unsaturated resins and oils; in food packaging; as a polymerization inhibitor; and as a staining protector in rubber; [HSDB]
• ANTIOXIDANT FOR UNCURED RUBBER & FOR UNSATURATED RESINS & OILS; FOOD PACKAGING; POLYMERIZATION INHIBITOR
• AS STAINING PROTECTOR IN RUBBER
• ERICKSON, BRITISH PATENT 596,461 (1948 TO MATHIESON ALKALI WORKS).
• Hydroquinone + isoamylene (Friedel-Crafts alkylation)
• Plastics Material and Resin Manufacturing

Synonyms

79-74-3; 2,5-Di-tert-amylhydroquinone; 2,5-Di-tert-pentylbenzene-1,4-diol; 2,5-Di-tert-pentylhydroquinone; Santovar A; Diamylhydroquinone; Antage DAH; USAF B-21; 1,4-Benzenediol, 2,5-bis(1,1-dimethylpropyl)-; 2,5-DI(TERT-AMYL)HYDROQUINONE; 2,5-Di-t-amylhydroquinone; 2,5-Bis(1,1-dimethylpropyl)hydroquinone; Hydroquinone, 2,5-di-tert-pentyl-; Hydroquinone, 2,5-di-t-pentyl-; NSC 455; Hydroquinone, 2,5-di-tert-amyl-

Frequently Asked Questions

What are the CAS number and molecular formula of 2,5-Di-tert-amylhydroquinone?

CAS 79-74-3; molecular formula C16H26O2; molecular weight — g/mol.

What other names is 2,5-Di-tert-amylhydroquinone known by?

79-74-3, 2,5-Di-tert-amylhydroquinone, 2,5-Di-tert-pentylbenzene-1,4-diol, 2,5-Di-tert-pentylhydroquinone, Santovar A, Diamylhydroquinone.

What is the regulatory status of 2,5-Di-tert-amylhydroquinone?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; CIR / INCI: Antioxidant.

Is 2,5-Di-tert-amylhydroquinone classified as hazardous?

Hazard statements reported: H302, H317, H400, H410, H371.

What are the key physical properties of 2,5-Di-tert-amylhydroquinone?

Melting Point: 179.4-180.4 °C; Density: 1.05 @ 25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.