Chinese Japanese Germany Korea
ChemicalBook >> CAS DataBase List >>2-Hydroxy-2-methylpropiophenone

2-Hydroxy-2-methylpropiophenone

2-Hydroxy-2-methylpropiophenone Structure
2-Hydroxy-2-methylpropiophenone structure
CAS No.
7473-98-5
Chemical Name:
2-Hydroxy-2-methylpropiophenone
Synonyms
1173;Irgacure 1173;2-HYDROXY-2-METHYL-1-PHENYL-1-PROPANONE;Omnirad 1173;BENZOYL ISOPROPANOL;PI-1173;IHT-PI 1173;Photocure-1173;2-Hydroxy-2-methylpr;2-BENZOYL-2-PROPANOL
CBNumber:
CB0150675
Molecular Formula:
C10H12O2
Molecular Weight:
164.2
MDL Number:
MFCD00040710
MOL File:
7473-98-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-27 09:44:53
Product description Number Pack Size Price
2-Hydroxy-2-methylpropiophenone 97% 405655 50ml $73.8
2-Hydroxy-2-methylpropiophenone 97% 405655 250ml $256
2-Hydroxy-2-methylpropiophenone >96.0%(GC) H0991 25g $27
2-Hydroxy-2-methylpropiophenone >96.0%(GC) H0991 100g $44
2-Hydroxy-2-methylpropiophenone >96.0%(GC) H0991 500g $134
More product size
Request For Quotation

2-Hydroxy-2-methylpropiophenone Properties

Melting point 4°C
Boiling point 102-103 °C4 mm Hg(lit.)
Density 1.077 g/mL at 25 °C(lit.)
vapor pressure 0.57Pa at 20℃
refractive index n20/D 1.533(lit.)
Flash point >230 °F
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility Practically insoluble in water
pka 13.23±0.29(Predicted)
form clear liquid
color Colorless to Light orange to Yellow
Specific Gravity 1.077
Odor Slight odor
Water Solubility 13.3g/L at 20℃
Cosmetics Ingredients Functions FILM FORMING
InChI 1S/C10H12O2/c1-10(2,12)9(11)8-6-4-3-5-7-8/h3-7,12H,1-2H3
InChIKey XMLYCEVDHLAQEL-UHFFFAOYSA-N
SMILES CC(C)(O)C(=O)c1ccccc1
LogP 1.62 at 25℃
CAS DataBase Reference 7473-98-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII Z0LRG273AD
EPA Substance Registry System 1-Propanone, 2-hydroxy-2-methyl-1-phenyl- (7473-98-5)
UNSPSC Code 12162002
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P501
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xn
Risk Statements  22
Safety Statements  23-36/37/39
RIDADR  3082
WGK Germany  3
RTECS  UC2977245
TSCA  TSCA listed
HazardClass  9
PackingGroup  III
HS Code  29144000
Storage Class 10 - Combustible liquids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Chronic 3
NFPA 704
1
0 0

2-Hydroxy-2-methylpropiophenone price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 405655 2-Hydroxy-2-methylpropiophenone 97% 7473-98-5 50ml $73.8 2026-04-30 Buy
Sigma-Aldrich 405655 2-Hydroxy-2-methylpropiophenone 97% 7473-98-5 250ml $256 2026-04-30 Buy
TCI Chemical H0991 2-Hydroxy-2-methylpropiophenone >96.0%(GC) 7473-98-5 25g $27 2026-04-30 Buy
TCI Chemical H0991 2-Hydroxy-2-methylpropiophenone >96.0%(GC) 7473-98-5 100g $44 2026-04-30 Buy
TCI Chemical H0991 2-Hydroxy-2-methylpropiophenone >96.0%(GC) 7473-98-5 500g $134 2026-04-30 Buy
Product number Packaging Price Buy
405655 50ml $73.8 Buy
405655 250ml $256 Buy
H0991 25g $27 Buy
H0991 100g $44 Buy
H0991 500g $134 Buy

2-Hydroxy-2-methylpropiophenone Chemical Properties,Uses,Production

Uses

2-Hydroxy-2-methylpropiophenone is a photoinitiator.In addition, 2-hydroxy-2-methylpropiophenone is an important organic intermediate (building block) to synthetize substituted propiophenone products.

Chemical Properties

Yellowish clear liquid

Uses

2-Hydroxy-2-benzoylpropane was used as a catalyst in real-time kinetic study of laser-induced polymerization. It is also a photoinitiator.

Synthesis Reference(s)

Tetrahedron Letters, 29, p. 4365, 1988 DOI: 10.1016/S0040-4039(00)80496-7

General Description

2-Hydroxy-2-methylpropiophenone is a radical photoinitiator (PI) molecule that can be used in the crosslinking of polymers by the exposure of UV radiation. It can be used in the development of UV curable resins for exterior coating applications.

Hazard

Moderately toxic by ingestion.

Flammability and Explosibility

Not classified

Synthesis

KBr in water is added to a solution of 2-methyl-1-phenylpropane-1,2-diol in toluene. Then, TEMPO is added. The reddish suspension is cooled to 0°C. A 12 % sodium hypochlorite solution is added while maintaining the internal temperature at 5°C or lower. The mixture is stirred for 1 h at 0-5°C and then separated for 10 min. Sodium dithionite solution (obtained from 30 g sodium dithionite (85%) and 400 ml of water)is added to the organic phase and stirred at 85°C for 1-2 h. The organic phase is again separated and concentrated (rotavap). The crude product is then subjected to fractional distillation, yielding 2-Hydroxy-2-methylpropiophenone as a colorless oil.
2-Hydroxy-2-methylpropiophenone

Toxics Screening Level

The ITSL for 2-hydroxy-2-methyl-1-phenyl-1-propanone has been changed from 0.04 μg/m3 to 0.1 μg/m3 based on annual averaging time.

2-Hydroxy-2-methylpropiophenone synthesis

7473-99-6
7473-98-5
Synthesis of 2-Hydroxy-2-methylpropiophenone from 2-chloro-2-methylpropiophenone

2-Hydroxy-2-methylpropiophenone Preparation Products And Raw materials

Raw materials

1,2-Propanediol,2-methyl-1-phenyl- 2-chloro-2-methylpropiophenone Isobutyrophenone

Preparation Products

2-Hydroxy-2-methylpropiophenone Suppliers

Global( 499)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Z&T Chemical Co., Ltd
+86-021-33561011 +8613818804961 Sales@ztchemical.com.cn China 546 58
Hu Bei Jiutian Bio-medical Technology CO.,Ltd
027-88013699 17354350817 Ryan@jiutian-bio.com China 5945 58
Chemport Science Technology Shanghai) Co., Ltd.
+undefined13816004845 chen@chemport-sh.com China 188 58
Hebei Chuanghai Biotechnology Co., Ltd 		+8615350571055 Sibel@chuanghaibio.com China 8738 58
Hebei Yanxi Chemical Co., Ltd. 		+8618531123677 faithe@yan-xi.com China 5853 58
Hebei Chuanghai Biotechnology Co,.LTD 		+86-86-13131129325 +8613131129325 sales1@chuanghaibio.com China 5235 58
Hebei Fengjia New Material Co., Ltd 		+86-0311-87836622 +86-18712993135 sales01@tairunfaz.com China 8051 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20124 58
Hebei Zhuanglai Chemical Trading Co.,Ltd 		+8613343047651 admin@zlchemi.com China 3692 58
Shandong Deshang Chemical Co., Ltd. 		+86-0531-8875-2665 +8613153039501 info@deshangchem.com China 661 58
Supplier Advantage
Shanghai Z&T Chemical Co., Ltd
58
Hu Bei Jiutian Bio-medical Technology CO.,Ltd
58
Chemport Science Technology Shanghai) Co., Ltd.
58
Hebei Chuanghai Biotechnology Co., Ltd 		58
Hebei Yanxi Chemical Co., Ltd. 		58
Hebei Chuanghai Biotechnology Co,.LTD 		58
Hebei Fengjia New Material Co., Ltd 		58
Henan Fengda Chemical Co., Ltd 		58
Hebei Zhuanglai Chemical Trading Co.,Ltd 		58
Shandong Deshang Chemical Co., Ltd. 		58

Related articles

Related Qustion

Ask a question
Q:What are the core uses and advantages of 2-Hydroxy-2-methylpropiophenone?Jack - Apr 27，2026
A:2-Hydroxy-2-methylpropiophenone, also commonly known as photoinitiator 1173, is a widely used free radical UV-curing initiator. It is a transparent, oily liquid at room temperature and exhibits good compatibility with various acrylic resins and monomers. Its core applications are in UV-curable coatings, printing inks, self-adhesive adhesives, and UV-curable composite materials, and it is suitable for various substrates including plastics, wood, and metals. This product boasts outstanding advantages such as high curing efficiency, low odor, and excellent resistance to yellowing. The cured product exhibits stable color and can often be used alone or in combination with other types of photoinitiators to meet the production needs of different processes and products.

View Lastest Price from 2-Hydroxy-2-methylpropiophenone manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Hydroxy-2-methylpropiophenone pictures 2026-04-30 2-Hydroxy-2-methylpropiophenone
7473-98-5
 US $0.00 / Kg/Drum 1KG 99% 200mt Jinan Finer Chemical Co., Ltd
2-Hydroxy-2-methylpropiophenone pictures 2026-04-30 2-Hydroxy-2-methylpropiophenone
7473-98-5
 US $0.00 / KG 25KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
Uv Photoinitiator Omnirad 1173 / Speedcure 73 pictures 2026-03-20 Uv Photoinitiator Omnirad 1173 / Speedcure 73
7473-98-5
 US $1.00 / PCS 1PCS 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd

2-Hydroxy-2-methylpropiophenone Spectrum

2-Hydroxy-2-methylpropiophenone(7473-98-5)MS2-Hydroxy-2-methylpropiophenone(7473-98-5)1HNMR2-Hydroxy-2-methylpropiophenone(7473-98-5)IR1

7473-98-5(2-Hydroxy-2-methylpropiophenone)Related Search:

Silicone oil (high temperature) Trimethylolpropane Hydroxyacetone 4-Methoxyphenylacetone CHLOROPHOSPHONAZO III
ISOBUTANE 1,3-Dihydroxyacetone Chlorodimethylphenylsilane Benzeneacetic acid, alpha-oxo-,2-(2-hydroxyethoxy) ethyl ester Pentaerythritol triacrylate
Benzeneacetic acid, alpha-oxo-, Oxydi-2,1-ethanediyl ester GLYCERYL PROPOXY TRIACRYLATE methylphenyl silicone resin Phenylacetone Propiophenone
ALPHA-HYDROXY-ALPHA-METHYLBENZYL PHENYL KETONE 4-EPIANHYDROCHLORTETRACYCLINE HYDROCHLORIDE, CAN BE USED AS SECONDARY STANDARD 1-(4-ISOPROPYLPHENYL)-2-HYDROXY-2-METHYL-1-PROPANONE

1of4

Photocure-1173 1-Phenyl-2-Hydroxy-2-Methyl-1-Propanone 2-Hydroxy-2-Methylpheny-Propane-1-one 1-Propanone, 2-hydroxy-2-methyl-1-phenyl- ACETOCURE 73 1-Phenyl-2-hydroxy-2-methylpropane-1-one 1-Phenyl-2-methyl-2-hydroxy-1-propanone 2-Hydroxy-2-methyl-1-phenylpropane-1-one 1-Phenyl-2-(hydroxymethyl)-1-propanone 1-Hydroxy-1-methylethyl phenyl ketone 2-Hydroxy-2-Methyl-1-phenyl-1-Porpanone alpha-Hydroxyisobutyrophenone BENZOYL ISOPROPANOL 2,2-DIMETHYL-α-HYDROXYACETOPHENONE IHT-PI 1173 Globalchem Globalcure-73 α-Hydroxy isobutyryl benzene 2-Hydroxy-2-methylpr Hydroxy-2-Methylpropiophen 2-Hydroxy-2-Methylpropiophenone 97% photo sensitizer 1173 α-Hydroxyisobutyrophenone Doublecure 173 IGM 1173 TM PI 1173 1-Phenyl-2-hydroxy-2-methylpropan-1-one 2-hydroxy-2-methyl-1-phenyl-1-propanon a-Hyd[cl]roxyMethy1[e]propiophenone photoinitiator1173 2-HYDROXY-2-METHYL-1-PHENYL PROPANONE 2-HYDROXY-2-METHYL-PHENYLPROPANE-1-ONE 2-HYDROXY-2-METHYLPROPIOPHENONE 2-BENZOYL-2-PROPANOL HYDROXYMETHYL PROPIOPHENONE OMNIRAD 1173(former DAROCUR 1173) OMNIRAD 73 HRcure-1173 2-Hydroxy-2-methylpropiophenone(1173) 2-HYDROXY-2-METHYL-1-P 2-Hydroxy-2-methyl-1-phenyl-1-propanone equiv.:Irgacure 1173 YF-PI 1173 2-Hydroxy-2-methylpropiophenone> Photoinitiator Irgacure 1173 Uv Photoinitiator Omnirad 1173 / Speedcure 73 PHOTOINITIATOR 1173 (UV1173) UV Photoinitiator 1173 Photo initiator Sunitor 1173 Sinocure? 1173 / Photoinitiator 1173 / Irgacure 1173 / Darocur 1173 / Omnirad 1173 2-hydroxy-2-methylphenylacetone RJ313A APi-1173 Omnirad 1173D α-Hydroxyketone（1103） CHLUMINIT 1173 405655-250ML Benzyl Benzoate Impurity 19 1173 Irgacure 1173