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1-Oxo Ibuprofen

CAS No.
65813-55-0
Chemical Name:
1-Oxo Ibuprofen
Synonyms
2-(4-isobutyrylphenyl)propanoic acid;Ibuprofen Related Compound J;(2RS)-2-(4-ISOBUTYRYLPHENYL)PROPANOIC ACID;IBUPROFEN IMPURITY J;Ibuprofen EP Impurity J;AKOS 90964;Ketoibuprofen;1-Oxo Ibuprofen;Ibuprofen Impurity J(EP);Ibuprofen IMpurity-J(EP/BP)
CBNumber:
CB0752734
Molecular Formula:
C13H16O3
Molecular Weight:
220.26
MDL Number:
MFCD08275584
MOL File:
65813-55-0.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 22:53:30

1-Oxo Ibuprofen Properties

Melting point 85-87°C
Boiling point 378.0±17.0 °C(Predicted)
Density 1.106±0.06 g/cm3(Predicted)
storage temp. -20°C Freezer
solubility Chloroform (Slightly), Methanol (Slightly)
form Solid
pka 4.08±0.10(Predicted)
color White to Off-White
BRN 2844898
Major Application pharmaceutical (small molecule)
InChI 1S/C13H16O3/c1-8(2)12(14)11-6-4-10(5-7-11)9(3)13(15)16/h4-9H,1-3H3,(H,15,16)
InChIKey RCINGEKPKJQCMO-UHFFFAOYSA-N
SMILES OC(C(C)C1=CC=C(C(C(C)C)=O)C=C1)=O
FDA UNII 0L2ZBN7PVB
UNSPSC Code 41116107
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P501
Hazard Codes  Xn
Risk Statements  22
WGK Germany  3
HS Code  2917394000
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
NFPA 704
0
2 0

1-Oxo Ibuprofen price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 1335596 Ibuprofen Related Compound J United States Pharmacopeia (USP) Reference Standard 65813-55-0 25mg $1390 2026-04-30 Buy
Cayman Chemical 22573 1-oxo Ibuprofen ≥98% 65813-55-0 1mg $36 2026-04-30 Buy
Cayman Chemical 22573 1-oxo Ibuprofen ≥98% 65813-55-0 5mg $135 2026-04-30 Buy
Cayman Chemical 22573 1-oxo Ibuprofen ≥98% 65813-55-0 10mg $219 2026-04-30 Buy
Usbiological 019004 1-Oxo Ibuprofen ~98% 65813-55-0 10mg $446 2026-06-03 Buy
Product number Packaging Price Buy
1335596 25mg $1390 Buy
22573 1mg $36 Buy
22573 5mg $135 Buy
22573 10mg $219 Buy
019004 10mg $446 Buy

1-Oxo Ibuprofen Chemical Properties, Uses, Production

Chemical Properties

White Solid

Uses

1-Oxo Ibuprofen, is a degradation product of Ibuprofen arising from oxidative and thermal treatments. 1-Oxo Ibuprofen is the Ibuprofen impurity J.

Uses

1-Oxo Ibuprofen (Ibuprofen EP Impurity J), is a degradation product of Ibuprofen arising from oxidative and thermal treatments. 1-Oxo Ibuprofen is the Ibuprofen impurity J.

Uses

Degradation product of Ibuprofen arising from oxidative and thermal treatments. Ibuprofen impurity J

1-Oxo Ibuprofen Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 158)
Supplier Tel Email Country ProdList Advantage
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@163.com China 280 58
Chemsky(shanghai)International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Dalian Meilun Biotech Co., Ltd. 0411-62910999 13889544652 sales@meilune.com China 4765 58
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-4000505016 13380397412 3001272453@qq.com China 5000 50
S.Z. PhyStandard Bio-Tech. Co., Ltd. 0755-83725681-603 China 4484 50
SynAsst Chemical. 021-60343070 China 12731 55
TargetMol Chemicals Inc. 021-021-33632979 15002134094 marketing@targetmol.com China 7993 58
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56

View Latest Price from 1-Oxo Ibuprofen manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Ibuprofen Impurity J(EP) pictures 2025-12-19 Ibuprofen Impurity J(EP)
65813-55-0
10mg 90%+ 10g Guangzhou PI PI BIOTECH INC
Ibuprofen Impurity pictures 2025-12-16 Ibuprofen Impurity
65813-55-0
10mg 95%+ 100000 Moxin Chemicals
AKOS 90964 IBUPROFEN IMPURITY J 1-Oxo Ibuprofen (Ibuprofen Impurity J) 2-(4-Isobutyrylphenyl)propionic Acid a-Methyl-4-(2-methyl-1-oxopropyl)benzeneacetic Acid 1-Oxo Ibuprofen (2RS)-2-[4-(2-Methylpropanoyl)phenyl] propanoic acid (2RS)-2-(4-Isobutyrylphenyl)propionic acid Ibuprofen impurity J (PhEur) Ketoibuprofen Ibuprofen EP Impurity J Ibuprofen Related Compound J 2-(4-isobutyrylphenyl)propanoic acid Imp. J (EP): (2RS)-2-[4-(2-Methylpropanoyl)phenyl]propanoic Acid α-Methyl-4-(2-Methyl-1-oxopropyl)benzeneacetic Acid Ibuprofen IMpurity-J(EP/BP) 2-[4-(2-Methylpropanoyl)phenyl] propanoic acid, racemic Ibuprofen impurity 4/Ibuprofen EP Impurity J/1-Oxo Ibuprofen/2-(4-Isobutyrylphenyl)propanoic acid Ibuprofen Impurity J(EP) 1-Oxo Ibuprofen(Ibuprofen EP Impurity J) Ibuprofen EP Impurity J:Ibuprofen Impurity J (2RS)-2-[4-(2-Methyl-propanoyl)phen Benzeneacetic acid, α-methyl-4-(2-methyl-1-oxopropyl)- Ibuprofen Impurity 10(Ibuprofen EP Impurity J) Ibuprofen EP Impurity J/ Ibuprofen Related Compound J (1-Oxo Ibuprofen) (RS)-2-(4-ISOBUTYRYLPHENYL)PROPANOIC ACID Ibuprofen USP Related Compound J 2-[4-(2-methylpropanoyl)phenyl]propanoic acid Ibuprofen EP Impurity J (Ibuprofen USP Related Compound J) (2RS)-2-(4-ISOBUTYRYLPHENYL)PROPANOIC ACID 65813-55-0 Aromatics Impurities Intermediates & Fine Chemicals Pharmaceuticals