2',5'-DIHYDROXYPROPIOPHENONE

Product Name: 2',5'-DIHYDROXYPROPIOPHENONE
CAS No.: 938-46-5
Chemical Name: 2',5'-DIHYDROXYPROPIOPHENONE
Synonyms: 2-PROPIONYLHYDROQUINONE;Methoxamine Impurity 22;2,5-DIHYDROXYPROPIOPHENONE;Methoxamine Impurity 11 HCl;2',5'-DIHYDROXYPROPIOPHENONE;2’,5’-dihydroxy-propiophenon;2',5'-DIHYDROXYPROPIOPHENONE;Propiophenone, 2',5'-dihydroxy-;2',5'-Dihydroxypropiophenone,98%;1-(2,5-DIHYDROXYPHENYL)PROPAN-1-ONE
CBNumber: CB3395464
Molecular Formula: C9H10O3
Formula Weight: 166.17
MOL File: 938-46-5.mol

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2',5'-DIHYDROXYPROPIOPHENONE Property

Melting point:: 95-99 °C
Boiling point:: 254.38°C (rough estimate)
Density: 1.1708 (rough estimate)
refractive index: 1.5500 (estimate)
pka: 8.96±0.48(Predicted)
BRN: 1938824
CAS DataBase Reference: 938-46-5(CAS DataBase Reference)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 37/39-26
RTECS: UH0420000
HS Code: 2914310000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: S372315
Product name: 2',5'-DIHYDROXYPROPIOPHENONE
Purity: Aldrich
Packaging: 250mg
Price: $139
Updated: 2024/03/01

Biosynth Carbosynth

Product number: FD54147
Product name: 2,5-Dihydroxypropiophenone
Packaging: 100g
Price: $500
Updated: 2021/12/16

AK Scientific

Product number: Y1983
Product name: 2',5'-Dihydroxypropiophenone
Packaging: 250g
Price: $549
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: COR0000627
Product name: 2',5'-DIHYDROXYPROPIOPHENONE
Purity: 95.00%
Packaging: 1G
Price: $1030.84
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: COR0000627
Product name: 2',5'-DIHYDROXYPROPIOPHENONE
Purity: 95.00%
Packaging: 5G
Price: $4244.63
Updated: 2021/12/16

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2',5'-DIHYDROXYPROPIOPHENONE Chemical Properties,Usage,Production

Chemical Properties

yellowish crystalline powder

Preparation

Preparation by Fries rearrangement of quinol dipropionate (hydroquinone dipropionate),
with aluminium chloride without solvent at 130–140° for 4 h (75%), ? at 142° for 30 min (80%), at 160–165° for 3 h (good yields) or at 190–200° for 90 min (60%)
by using various quantities of aluminium chloride at 180° for 2 h (to see ? below)
with aluminium chloride (2 equiv) in nitromethane at 20° for a week (7%) ? or in nitrobenzene (24%)
with boron trifluoride complex (BF? 3-OBu2) at reflux for 1 h (42%)
by using titanium tetrachloride (2 equiv) at 130° for 2 h gave only 6% yield
Also obtained by treatment of
hydroquinone dipropionate with aluminium chloride in the presence of hyd-? roquinone (61%)
2-hydroxy-5-(propionyloxy)propiophenone with aluminium chloride (5 equiv) ? at 180° for 30 min in the presence of hydroquinone (57%)
Also obtained by acylation of hydroquinone with propionic acid
in the presence of boron trifluoride in ethylene dichloride at 50–55° (59%) ?, in tetrachloroethane at 90–95° for 5 h (70%) or at 50° for 4 h (70%) or without solvent (67%) at 80° for 2 h (54%) or at 125° for 2 h (71%)
in the presence of zinc chloride at 190° few min (Nencki reaction)
in the presence of 70% perchloric acid at reflux for 1 h (12%)
Also obtained by Friedel–Crafts acylation of hydroquinone with propionyl chlo-ride in nitrobenzene in the presence of aluminium chloride (40%)
Also obtained from 2-hydroxy-5-(propionyloxy)propiophenone; the ester group elimination on hydrolysis with 85% sulfuric acid at r.t. or by treatment with by aluminium chloride
Also obtained by reaction of benzoquinone (2.5 equiv) with 2-oxobutanoic acid in aqueous acetonitrile or an acetonitrile/methylene chloride mixture (91%).

2',5'-DIHYDROXYPROPIOPHENONE Preparation Products And Raw materials

Raw materials

Preparation Products

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2',5'-DIHYDROXYPROPIOPHENONE Suppliers

Belgium 1 China 23 Europe 2 Germany 2 India 8 Japan 1 The Netherlands 1 United Kingdom 9 United States 13 Global 60

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938-46-5, 2',5'-DIHYDROXYPROPIOPHENONERelated Search:

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Methoxamine Impurity 22

Methoxamine Impurity 11 HCl

2',5'-DIHYDROXYPROPIOPHENONE

938-46-5

Aromatic Propiophenones (substituted)