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147141

Sigma-Aldrich

Naphthalene

99%

Synonym(s):

Naphthalin, Tar Camphor, White Tar

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25 G
¥2,000
1 KG
¥4,700
3 KG
¥9,600

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List Price¥2,640Save 24%

Estimated to ship onMarch 29, 2025

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25 G
¥2,000
1 KG
¥4,700
3 KG
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About This Item

Empirical Formula (Hill Notation):
C10H8
CAS Number:
91-20-3
Molecular Weight:
128.17
Beilstein:
1421310
EC Number:
202-049-5
MDL number:
MFCD00001742
UNSPSC Code:
12352100
eCl@ss:
39011601
PubChem Substance ID:
24848808
NACRES:
NA.22
form:
crystals
flakes
Assay:
99%

¥2,000

List Price¥2,640Save 24%

Estimated to ship onMarch 29, 2025

Request a Bulk Order

vapor density

4.4 (vs air)

Quality Level

200

vapor pressure

0.03 mmHg ( 25 °C)

Assay

99%

form

crystals
flakes

autoignition temp.

978 °F

expl. lim.

5.9 %

bp

218 °C (lit.)

mp

80-82 °C (lit.)

solubility

methanol: soluble 50 mg/mL, clear, colorless

SMILES string

c1ccc2ccccc2c1

InChI

1S/C10H8/c1-2-6-10-8-4-3-7-9(10)5-1/h1-8H

InChI key

UFWIBTONFRDIAS-UHFFFAOYSA-N

Gene Information

human ... CYP1A2(1544)

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General description

Heterogeneous ozonolysis of naphthalene adsorbed on XAD-4 resin has been studied using annular denuder technique[1].

Naphthalene is widely used to synthesize naphthylamines,sulfonic acid,synthetic resins,anthranilic and phthalic acids.[2]

Application

Naphthalene was used in liquid-phase exfoliation of graphite in organic solvents for the production of graphene sheets[3]. It was used in preparation of carbon-coated Si70Sn30 nanoparticles[4]. It was used as fluorescent probe to study the aggregation behavior of sodium cholate[5].

Signal Word

Warning

Hazard Statements

H228,H302,H351,H410

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Flam. Sol. 2

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Flash Point(F)

173.3 °F - closed cup

Flash Point(C)

78.5 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

147141-25KG:
147141-VAR:
147141-3KG:4548173913001
147141-BULK:
147141-1KG:4548173912981
147141-25G:4548173912998
147141-5KG:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW2356
MKCV4551
MKCT4842
MKCR5483
MKCS2734

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Naphthalene toxicity and antioxidant nutrients
Stohs SJ, et al.
Toxicology, 180, 97-105 (2002)
Olga Rinco et al.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2(11), 1140-1151 (2003-12-24)
The binding dynamics with bile salt aggregates for a series of naphthalene derivatives of different polarities was studied using fluorescence and laser flash photolysis. Fluorescence was employed to determine the nature of the binding site for each guest and the
YooJeong Kwon et al.
Chemical communications (Cambridge, England), (9)(9), 1109-1111 (2008-02-23)
Carbon-coated Si70Sn30 nanoalloys with a particle size < 10 nm were prepared from butyl-capped analogues via firing at 900 degrees C under a vacuum showed a reversible capacity of 2032 mAh g(-1) and excellent capacity retention.
Mathieu Goriaux et al.
Environmental science and pollution research international, 21(8), 5628-5636 (2014-01-15)
The heterogeneous ozonolysis of naphthalene adsorbed on XAD-4 resin was studied using an annular denuder technique. The experiments involved depositing a known quantity of naphthalene on the XAD-4 resin and then measuring the quantity of the solid naphthalene that reacted
Jiasheng Xu et al.
Journal of colloid and interface science, 418, 37-42 (2014-01-28)
We report a facile method for the production of graphene sheets through liquid-phase exfoliation of graphite in organic solvents with addition of naphthalene. The production yield of graphene is significantly increased with the addition of naphthalene in most solvents tested
View All Related Papers

Questions

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  1. 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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  2. 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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