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D116408

Sigma-Aldrich

2,7-Dihydroxynaphthalene

97%

Synonym(s):

2,7-Naphthalenediol

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About This Item

Linear Formula:
C10H6(OH)2
CAS Number:
582-17-2
Molecular Weight:
160.17
Beilstein:
2042383
EC Number:
209-478-7
MDL number:
MFCD00004085
UNSPSC Code:
12352100
PubChem Substance ID:
24893371
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

200

Assay

97%

form

powder

mp

185-190 °C (lit.)

SMILES string

Oc1ccc2ccc(O)cc2c1

InChI

1S/C10H8O2/c11-9-3-1-7-2-4-10(12)6-8(7)5-9/h1-6,11-12H

InChI key

DFQICHCWIIJABH-UHFFFAOYSA-N

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General description

2,7-Dihydroxynaphthalene is a organic building block used to prepare sulfonic acids, divinylnaphthalenes, dyes, pigments, and fluorescent whiteners.[1]

Application

Starting material for the synthesis of sulfonic acids[2] and divinylnaphthalenes.[3]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF5214V
WXBF2995V
WXBF0604V
WXBF1710V
WXBD7225V

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Efficient lactic acid-catalyzed route to naphthopyranopyrimidines under solvent-free conditions
Sadeh FN, et al.
Organic preparations and procedures international, 49, 35-44 (2017)
G J Kemperman et al.
Organic letters, 2(18), 2829-2831 (2000-08-31)
[structure: see text] The cephalosporin antibiotic Cefadroxil can be epimerized at the alpha-carbon of its amino acid side chain using pyridoxal as the mediator. By clathration with 2,7-dihydroxynaphthalene, the desired diastereomer can be selectively withdrawn from the equilibrating mixture of
Subrata Kundu et al.
Langmuir : the ACS journal of surfaces and colloids, 26(9), 6720-6727 (2009-12-25)
A new synthetic route has been utilized for the formation of multiple-shaped Pt nanoparticles (NPs) under UV-photoirradiation. The one-step process exclusively generates different shapes, such as spheres, cubes, short and long wires, and flakelike nanostructures. The reduction of Pt(IV) ions
Maria Bonaccio et al.
Biochemistry, 44(21), 7656-7668 (2005-05-25)
The insulin hexamer is an allosteric protein widely used in formulations for the treatment of diabetes. The hexamer exhibits positive and negative cooperativity and apparent half-site binding activity, reflecting the interconversion of three allosteric states, designated as T6, T3R3, and
Adriana Trapani et al.
Carbohydrate polymers, 207, 720-728 (2019-01-03)
The antibacterial activity of the S-unsubstituted- and S-benzyl-substituted-2-mercapto-benzothiazoles 1-4 has been evaluated after complexation with Methyl-β-Cyclodextrin (Me-β-CD) or incorporation in solid dispersions based on Pluronic® F-127 and compared with that of the pure compounds. This with the aim to gain
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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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