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4-(Hydroxyamino)-4-oxobutanoic acid

4-(Hydroxyamino)-4-oxobutanoic acid Structure
4-(Hydroxyamino)-4-oxobutanoic acid structure
CAS No.
4743-99-1
Chemical Name:
4-(Hydroxyamino)-4-oxobutanoic acid
Synonyms
Tofacitinib Impurity 208;N-Hydroxysuccinamidic acid;4-(Hydroxyamino)-4-oxobutanoic acid;Butanoic acid, 4-(hydroxyamino)-4-oxo-;3-(Hydroxyaminocarbonyl)propionic acid
CBNumber:
CB02174169
Molecular Formula:
C4H7NO4
Molecular Weight:
133.1
MDL Number:
MOL File:
4743-99-1.mol
Last updated:2026-05-27 17:23:16
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4-(Hydroxyamino)-4-oxobutanoic acid Properties

Melting point 82-86 °C(Solv: acetonitrile (75-05-8))
Density 1.436±0.06 g/cm3(Predicted)
storage temp. Inert atmosphere,Store in freezer, under -20°C
pka 5.28±0.10(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338

4-(Hydroxyamino)-4-oxobutanoic acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
aablocks AA00DYD1 4-(Hydroxyamino)-4-oxobutanoic acid 95% 4743-99-1 100mg $99 2026-05-28 Buy
aablocks AA00DYD1 4-(Hydroxyamino)-4-oxobutanoic acid 95% 4743-99-1 250mg $164 2026-05-28 Buy
aablocks AA00DYD1 4-(Hydroxyamino)-4-oxobutanoic acid 95% 4743-99-1 1g $414 2026-05-28 Buy
aablocks AA00DYD1 4-(Hydroxyamino)-4-oxobutanoic acid 95% 4743-99-1 5g $1094 2026-05-28 Buy
Arctom BD-A160779 4-(Hydroxyamino)-4-oxobutanoic acid 95% 4743-99-1 100mg $98 2026-05-26 Buy
Product number Packaging Price Buy
AA00DYD1 100mg $99 Buy
AA00DYD1 250mg $164 Buy
AA00DYD1 1g $414 Buy
AA00DYD1 5g $1094 Buy
BD-A160779 100mg $98 Buy

4-(Hydroxyamino)-4-oxobutanoic acid Chemical Properties, Uses, Production

Preparation

To a refluxing solution of 5.0 gm (0.05 mole) of succinic anhydride in 100 ml of benzene is added a solution of 6.3 gm (0.05 mole) of O-ben- zylhydroxylamine in 20 ml of benzene. As soon as the addition has been completed, the reaction mixture is cooled, and the precipitated product is separated. Upon recrystallization from a benzene-methyl ethyl ketone mixture, 7.6 gm (68.2%) of N-benzyloxysuccinamic acid, m.p. 95-96°C isolated.
A suspension of 4.3 gm (0.0193 mole) of this intermediate and a stron- tium carbonate catalyst containing 5% palladium in methyl ethyl ketone is hydrogenated. Upon working up the reaction mixture, 1.45 gm (56.7%) of succinomonohydroxamic acid, m.p. 95-96°C is isolated.
Preparation of N-Hydroxysuccinamic Acid

4-(Hydroxyamino)-4-oxobutanoic acid Preparation Products And Raw materials

Raw materials

Preparation Products

4-(Hydroxyamino)-4-oxobutanoic acid Suppliers

Global Suppliers ( 24)
Supplier Tel Email Country ProdList Advantage
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Shanghai XinKai Chemical Technology Co., Ltd. 021-58930698 15921516558 zhangyichao84@126.com China 979 55
Suzhou Crst Pharmatech Co., Ltd. 0512-62910395 17751098781 sales@crstpharma.com China 497 58
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Aikon International Limited 025-58859352 15955137747 sales01@aikonchem.com China 16021 58
Shandong utilizing biological technology co., LTD 18669728830 15966937598 3407650895@qq.com China 5166 58
Suzhou Rovathin Foreign Trade Co.,Ltd 0512-65816829 18662214788 info@rovathin.com.cn China 9959 58
Shaanxi Dideu Medichem Co. Ltd +86-29-81139210 17389186172 1077@dideu.com China 3999 58
Antai Fine Chemical Technology Co.,Limited 18503026267 info@antaichem.com CHINA 9631 58
Chongqing Kemai Material Technology Co., Ltd 17830741407 sales@chem47.com China 1904 58
Supplier Advantage
Shanghai Macklin Biochemical Co.,Ltd. 55
Shanghai XinKai Chemical Technology Co., Ltd. 55
Suzhou Crst Pharmatech Co., Ltd. 58
Amadis Chemical Company Limited 58
Aikon International Limited 58
Shandong utilizing biological technology co., LTD 58
Suzhou Rovathin Foreign Trade Co.,Ltd 58
Shaanxi Dideu Medichem Co. Ltd 58
Antai Fine Chemical Technology Co.,Limited 58
Chongqing Kemai Material Technology Co., Ltd 58

View Latest Price from 4-(Hydroxyamino)-4-oxobutanoic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-(hydroxyamino)-4-oxobutanoic acid pictures 2026-08-07 4-(hydroxyamino)-4-oxobutanoic acid
4743-99-1
 $1.00-22.00 1KG 99% 100000KG Shaanxi Dideu Medichem Co. Ltd

4743-99-1 (4-(Hydroxyamino)-4-oxobutanoic acid) Related Search:

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3-(Hydroxyaminocarbonyl)propionic acid 4-(Hydroxyamino)-4-oxobutanoic acid N-Hydroxysuccinamidic acid Butanoic acid, 4-(hydroxyamino)-4-oxo- Tofacitinib Impurity 208 4743-99-1