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1082708

USP

Butylated hydroxytoluene

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

2,6-Di-tert-butyl-4-methylphenol, 2,6-Di-tert-butyl-p-cresol, BHT, Butylated hydroxytoluene, Butylhydroxytoluene, DBPC

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About This Item

Linear Formula:
[(CH3)3C]2C6H2(CH3)OH
CAS Number:
128-37-0
Molecular Weight:
220.35
Beilstein:
1911640
EC Number:
204-881-4
MDL number:
MFCD00011644
UNSPSC Code:
41116107
PubChem Substance ID:
329749182
NACRES:
NA.24
Pricing and availability is not currently available.

grade

pharmaceutical primary standard

vapor density

7.6 (vs air)

vapor pressure

<0.01 mmHg ( 20 °C)

API family

butylated hydroxytoluene

autoignition temp.

878 °F

manufacturer/tradename

USP

bp

265 °C (lit.)

mp

69-73 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

Cc1cc(c(O)c(c1)C(C)(C)C)C(C)(C)C

InChI

1S/C15H24O/c1-10-8-11(14(2,3)4)13(16)12(9-10)15(5,6)7/h8-9,16H,1-7H3

InChI key

NLZUEZXRPGMBCV-UHFFFAOYSA-N

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets, have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Butylated hydroxytoluene USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Dutasteride and Tamsulosin Hydrochloride Capsules

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

This product is part of USP Biologics Program.
Sales restrictions may apply.

related product

Product No.
Description
Pricing

Pictograms

Environment
GHS09

Signal Word

Warning

Hazard Statements

H410

Precautionary Statements

P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

260.6 °F - open cup

Flash Point(C)

127 °C - open cup

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Certificates of Analysis (COA)

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Butylated Hydroxytoluene
USP43-NF38: United States Pharmacopeia and National Formulary
United States Pharmacopeia, 45(6), 5652-5652 (2021)
Toxicology and biochemistry of butylated hydroxyanisole and butylated hydroxytoluene.
A L Branen
Journal of the American Oil Chemists' Society, 52(2), 59-63 (1975-02-01)
Metabolism and pulmonary toxicity of butylated hydroxytoluene (BHT).
H Witschi et al.
Pharmacology & therapeutics, 42(1), 89-113 (1989-01-01)
A M Malkinson
Environmental mutagenesis, 5(3), 353-362 (1983-01-01)
Although the average American's daily consumption of BHT can be measured in milligrams, there are numerous reports that BHT causes organ damage in laboratory animals. Only a few genotoxic effects of BHT have been reported, however, including mutagenicity in the
E M Bomhard et al.
Mutation research, 277(3), 187-200 (1992-09-01)
Butylated hydroxytoluene (BHT) is an effective, widely used, low cost antioxidant. A host of studies examining the potential of BHT to cause point mutations have been published. They include in vitro studies on various bacterial species and strains and on
View All Related Papers

Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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