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Merck

12540

Benzene

analytical standard

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About This Item

Empirical Formula (Hill Notation):
C6H6
CAS Number:
71-43-2
Molecular Weight:
78.11
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
329749754
EC Number:
200-753-7
Beilstein/REAXYS Number:
969212
MDL number:
MFCD00003009

Key Documents

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InChI key

UHOVQNZJYSORNB-UHFFFAOYSA-N

InChI

1S/C6H6/c1-2-4-6-5-3-1/h1-6H

SMILES string

c1ccccc1

grade

analytical standard

vapor density

2.77 (vs air)

vapor pressure

166 mmHg ( 37.7 °C), 74.6 mmHg ( 20 °C)

assay

≥99.9% (GC)

autoignition temp.

1043 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

8 %

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

impurities

≤0.03% water
water

refractive index

n20/D 1.501 (lit.), n20/D 1.501

bp

80 °C (lit.)

mp

5.5 °C (lit.)

density

0.874 g/mL at 25 °C (lit.)

application(s)

environmental

format

neat

Quality Level

100

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Application

Benzene may be used as a reference standard in the determination of the analyte in beverages using headspace gas chromatography coupled with flame ionization detector (HS-GC-FID).
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

signalword

Danger

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Carc. 1A - Eye Irrit. 2 - Flam. Liq. 2 - Muta. 1B - Skin Irrit. 2 - STOT RE 1

target_organs

Blood

Storage Class

3 - Flammable liquids

flash_point_f

12.2 °F

flash_point_c

-11 °C

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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.

71-43-2

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN8333
BCCN8334
BCCN5125
BCCN5124
BCCM2372

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Validation and uncertainty estimation of analytical method for determination of benzene in beverages.
Styarini D, et al.
Eurasian Journal of Analytical Chemistry, 6(3), 159-172 (2011)
Jelle Vlaanderen et al.
Environmental health perspectives, 119(2), 159-167 (2010-10-01)
The use of occupational cohort studies to assess the association of benzene and lymphoma is complicated by problems with exposure misclassification, outcome classification, and low statistical power. We performed meta-analyses of occupational cohort studies for five different lymphoma categories: Hodgkin
Cliona M McHale et al.
Carcinogenesis, 33(2), 240-252 (2011-12-15)
Benzene causes acute myeloid leukemia and probably other hematological malignancies. As benzene also causes hematotoxicity even in workers exposed to levels below the US permissible occupational exposure limit of 1 part per million, further assessment of the health risks associated
David Galbraith et al.
Critical reviews in toxicology, 40 Suppl 2, 1-46 (2010-10-14)
Over the last century, benzene has been a well-studied chemical, with some acute and chronic exposures being directly associated with observed hematologic effects in humans and animals. Chronic heavy exposures to benzene have also been associated with acute myelogenous leukemia
Scott M Arnold et al.
Critical reviews in toxicology, 43(2), 119-153 (2013-01-26)
Abstract A framework of "Common Criteria" (i.e. a series of questions) has been developed to inform the use and evaluation of biomonitoring data in the context of human exposure and risk assessment. The data-rich chemical benzene was selected for use
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