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Sigma-Aldrich

Benzaldehyde

puriss. p.a., ≥99.0% (GC)

Synonym(s):

Bitter almond

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About This Item

Linear Formula:
C6H5CHO
CAS Number:
Molecular Weight:
106.12
Beilstein/REAXYS Number:
471223
EC Number:
MDL number:
UNSPSC Code:
12352300
eCl@ss:
39023701
PubChem Substance ID:
NACRES:
NA.21

vapor density

3.7 (vs air)

Quality Level

vapor pressure

4 mmHg ( 45 °C)

grade

puriss. p.a.

assay

≥99.0% (GC)

form

liquid

autoignition temp.

374 °F

expl. lim.

1.4 %, 20 °F

impurities

chlorine, none detected
≤0.001% nitrobenzene (C6H5NO2)
≤1% acid (as benzoic acid)

refractive index

n20/D 1.545 (lit.)
n20/D 1.545

pH

5.9 (20 °C)

bp

178-179 °C (lit.)

mp

−26 °C (lit.)

density

1.044 g/cm3 at 20 °C (lit.)

cation traces

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/kg

SMILES string

O=Cc1ccccc1

InChI

1S/C7H6O/c8-6-7-4-2-1-3-5-7/h1-6H

InChI key

HUMNYLRZRPPJDN-UHFFFAOYSA-N

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General description

Benzaldehyde is the simplest aromatic aldehyde building block.

Application

Benzaldehyde has been used in:

  • Preparation of optically active 1-phenylpropan-1-ol.
  • Synthesis of meso-tetraphenylporphins and chlorins.

Other Notes

Sales restrictions may apply

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 1

flash_point_f

145.4 °F

flash_point_c

63 °C

ppe

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Enantioselective addition of diethylzinc to benzaldehyde catalyzed by a small amount of chiral 2-amino-1-alcohols.
Oguni N and Omi T.
Tetrahedron Letters, 25(26), 2823-2824 (1984)
Determination of base properties of hydrotalcites: condensation of benzaldehyde with ethyl acetoacetate.
Corma A, et al.
J. Catal., 134(1), 58-65 (1992)
A green process for chlorine-free benzaldehyde from the solvent-free oxidation of benzyl alcohol with molecular oxygen over a supported nano-size gold catalyst.
Choudhary VR, et al.
Green Chemistry, 7(11), 768-770 (2005)
Structure and electronic nature of the benzaldehyde/boron trifluoride adduct.
M T Reetz et al.
Journal of the American Chemical Society, 108(9), 2405-2408 (1986-04-01)
Porphyrinogens and porphodimethenes, intermediates in the synthesis of meso-tetraphenylporphins from pyrroles and benzaldehyde.
Dolphin D.
Journal of Heterocyclic Chemistry, 7, 275-283 (1970)

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