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418099

Sigma-Aldrich

Benzaldehyde

purified by redistillation, ≥99.5%

Synonym(s):

Bitter almond

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4 EA
¥3,740.32

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4 EA
¥3,740.32

About This Item

Linear Formula:
C6H5CHO
CAS Number:
100-52-7
Molecular Weight:
106.12
Beilstein:
471223
EC Number:
202-860-4
MDL number:
MFCD00003299
UNSPSC Code:
12352100
eCl@ss:
39023701
PubChem Substance ID:
24866203
NACRES:
NA.22
bp:
178-179 °C (lit.)
vapor pressure:
4 mmHg ( 45 °C)

¥3,740.32

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vapor density

3.7 (vs air)

Quality Level

200

vapor pressure

4 mmHg ( 45 °C)

Assay

≥99.5%

form

liquid

autoignition temp.

374 °F

purified by

redistillation

expl. lim.

1.4 %, 20 °F

refractive index

n20/D 1.545 (lit.)

pH

5.9 (20 °C)

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储存和分配系统 200 L storage tank (230 V) for Elix® and RiOs™ systems, For optimal storage of Type 2 or Type 3 pure water

TANK5P200

储存和分配系统

储存和分配系统 200 L storage tank (120 V) for Elix® and RiOs™ systems, For optimal storage of Type 2 or Type 3 pure water

TANK6P200

储存和分配系统

储存和分配系统 200 L storage tank (120 V) for Elix® and RiOs™ systems, For optimal storage of Type 2 or Type 3 pure water

TANK60200

储存和分配系统

储存和分配系统 single pump (100 V/127 V), Storage tank for pure (Type 2 and Type 3) water

TANK6SP500

储存和分配系统

compatibility

for use with Elix®, for use with RiOs™

compatibility

for use with Elix®, for use with RiOs™

compatibility

for use with Elix®, for use with RiOs™

compatibility

for use with Milli-Q® HR, for use with Milli-Q® HX

material

polyethylene reservoir

material

polyethylene reservoir

material

polyethylene reservoir

material

polyethylene tank(s), polypropylene pipework, inner chamber and valves (IR)

AC/DC input

230 V, 50-60 Hz

AC/DC input

120 V, 60 Hz

AC/DC input

120 V, 50-60 Hz

AC/DC input

-

packaging

pkg of 1 unit

packaging

pkg of 1 unit

packaging

pkg of 1 unit

packaging

pkg of 1 unit

parameter

≤40 L/min distribution flow rate

parameter

≤40 L/min distribution flow rate, 250 kg operating weight (551.2 lb)

parameter

≤40 L/min distribution flow rate, 250 kg operating weight (551.2 lb)

parameter

≤40 L/min distribution flow rate, 660 kg operating weight (308 lb)

General description

Benzaldehyde (bitter-almond oil) is an aromatic compound commonly used in the cosmetics and flavor industries. The natural source of benzaldehyde is amygdalin, a glycoside found in apricots, bitter almonds, apples, cherries etc. Benzaldehyde is commercially produced by liquid phase chlorination and oxidation of toluene. Other methods reported to produce benzaldehyde include oxidation of benzyl alcohol, hydrolysis of benzal chloride and carbonylation of benzene.[1][2]

Application

Benzaldehyde can be used as a precursor to synthesize:
  • Cinnamaldehyde, cinnamic acid, ethyl cinnamate, benzoic acid, benzyl alcohol, benzyl benzoate and hydrobenzamide etc.[2]
  • Triphenylmethane derivatives by condensation with phenols, aromatic amines, and benzene. This reaction is useful for the production of malachite green dyes.[2]
  • Benzoylborane by reacting with borylmagnesium bromides.[3]
  • Multi-benzaldehyde functionalized poly(ethylene glycol) analog which is used as a cross-linker to develop an injectable hydrogel system.[4]

Signal Word

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 Code

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

WGK

WGK 1

Flash Point(F)

145.4 °F - closed cup

Flash Point(C)

63 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves
  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    SHBQ5592
    SHBP4234
    SHBN1382
    SHBL0557
    SHBK7149

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    Synthesis, structure of borylmagnesium, and its reaction with benzaldehyde to form benzoylborane
    Yamashita M, et al.
    Journal of the American Chemical Society, 129(31), 9570-9571 (2007)
    An injectable hydrogel formed by in situ cross-linking of glycol chitosan and multi-benzaldehyde functionalized PEG analogues for cartilage tissue engineering
    Cao L, et al.
    Journal of materials chemistry. B, 3(7), 1268-1280 (2015)
    Benzaldehyde
    Bruhne F and Wright E
    Ullmann's Encyclopedia of Industrial Chemistry (2000)
    Spacing and site isolation of amine groups in 3-aminopropyl-grafted silica materials: The role of protecting groups.
    Hicks JC, et al.
    Chemistry of Materials, 18(21), 5022-5032 (2006)
    Highly selective oxidation of benzyl alcohol to benzaldehyde catalyzed by bimetallic gold?copper catalyst
    Della Pina C, et al.
    J. Catal., 260(2), 384-386 (2008)
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