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ChemicalBook >> CAS DataBase List >> Mal-PEG2-NHS ester

Mal-PEG2-NHS ester

Mal-PEG2-NHS ester price.
  • $34 - $3080
  • Product name: Mal-PEG2-NHS ester
  • CAS: 1433997-01-3
  • MF: C15H18N2O8
  • MW: 354.31
  • EINECS:
  • MDL Number:MFCD24539465
  • Synonyms:Mal-PEG2-NHS ester;2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate;Propanoic acid, 3-[2-[2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethoxy]ethoxy]-, 2,5-dioxo-1-pyrrolidinyl ester;Mal-PEG2-Osu;Mal-PEG2-CH2CH2COONHS;Maleimide-PEG2-NHS Ester 、MAL-PEG2-NHS;2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)propanoate
Price31 Properties Safety Information Description
31 prices
Selected condition：
Brand
  • aablocks
  • ACHEMBLOCK
  • Acrotein
  • American Custom Chemicals Corporation
  • Apolloscientific
  • Arctom
  • BroadPharm
  • Chemenu
  • ChemScene
  • Crysdot
  • TRC
Package
  • 2.5mg
  • 5MG
  • 10mg
  • 25mg
  • 100mg
  • 0.25g
  • 250mg
  • 0.5g
  • 500MG
  • 1g
  • 5G
  • 25G
  • Manufactureraablocks
  • Product numberAA003FXT
  • Product description2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)propanoate 95%
  • Packaging100mg
  • Price$34
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003FXT
  • Product description2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)propanoate 95%
  • Packaging250mg
  • Price$57
  • Updated2026-05-28
  • Buy
  • Manufactureraablocks
  • Product numberAA003FXT
  • Product description2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)propanoate 95%
  • Packaging1g
  • Price$149
  • Updated2026-05-28
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX210034
  • Product description2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate 97%
  • Packaging1G
  • Price$175
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX210034
  • Product description2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate 97%
  • Packaging5G
  • Price$770
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberX210034
  • Product description2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate 97%
  • Packaging25G
  • Price$3080
  • Updated2026-05-27
  • Buy
  • ManufacturerAcrotein
  • Product numberB-1809
  • Product descriptionMal-PEG2-CH2CH2COONHS 97%
  • Packaging1g
  • Price$458.33
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberB-1809
  • Product descriptionMal-PEG2-CH2CH2COONHS 97%
  • Packaging0.5g
  • Price$247.5
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberB-1809
  • Product descriptionMal-PEG2-CH2CH2COONHS 97%
  • Packaging0.25g
  • Price$148.5
  • Updated2026-05-25
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberPOL0002465
  • Product descriptionMAL-PEG2-NHS ESTER 95.00%
  • Packaging5MG
  • Price$500.7
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIPG1503
  • Product descriptionMal-PEG2-NHS ester 95%
  • Packaging5g
  • Price$784
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIPG1503
  • Product descriptionMal-PEG2-NHS ester 95%
  • Packaging1g
  • Price$232
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIPG1503
  • Product descriptionMal-PEG2-NHS ester 95%
  • Packaging100mg
  • Price$54
  • Updated2026-06-04
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIPG1503
  • Product descriptionMal-PEG2-NHS ester 95%
  • Packaging250mg
  • Price$88
  • Updated2026-06-04
  • Buy
  • ManufacturerArctom
  • Product numberHT-10770
  • Product descriptionMal-PEG2-NHS a‰￥95%
  • Packaging1g
  • Price$347
  • Updated2026-05-26
  • Buy
  • ManufacturerBroadPharm
  • Product numberbp-21680
  • Product descriptionMal-PEG2-NHS ester 98%
  • Packaging1G
  • Price$540
  • Updated2026-05-24
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA003FXT 2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)propanoate 95% 100mg $34 2026-05-28 Buy
aablocks AA003FXT 2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)propanoate 95% 250mg $57 2026-05-28 Buy
aablocks AA003FXT 2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)propanoate 95% 1g $149 2026-05-28 Buy
ACHEMBLOCK X210034 2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate 97% 1G $175 2026-05-27 Buy
ACHEMBLOCK X210034 2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate 97% 5G $770 2026-05-27 Buy
ACHEMBLOCK X210034 2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2,5-dioxo-2H-pyrrol-1(5H)-yl)ethoxy)ethoxy)propanoate 97% 25G $3080 2026-05-27 Buy
Acrotein B-1809 Mal-PEG2-CH2CH2COONHS 97% 1g $458.33 2026-05-25 Buy
Acrotein B-1809 Mal-PEG2-CH2CH2COONHS 97% 0.5g $247.5 2026-05-25 Buy
Acrotein B-1809 Mal-PEG2-CH2CH2COONHS 97% 0.25g $148.5 2026-05-25 Buy
American Custom Chemicals Corporation POL0002465 MAL-PEG2-NHS ESTER 95.00% 5MG $500.7 2021-12-16 Buy
Apolloscientific BIPG1503 Mal-PEG2-NHS ester 95% 5g $784 2026-06-04 Buy
Apolloscientific BIPG1503 Mal-PEG2-NHS ester 95% 1g $232 2026-06-04 Buy
Apolloscientific BIPG1503 Mal-PEG2-NHS ester 95% 100mg $54 2026-06-04 Buy
Apolloscientific BIPG1503 Mal-PEG2-NHS ester 95% 250mg $88 2026-06-04 Buy
Arctom HT-10770 Mal-PEG2-NHS a‰￥95% 1g $347 2026-05-26 Buy
BroadPharm bp-21680 Mal-PEG2-NHS ester 98% 1G $540 2026-05-24 Buy
Next Last

Properties

Boiling point :524.3±60.0 °C(Predicted)
Density :1.42±0.1 g/cm3(Predicted)
solubility :Soluble in DCM
pka :-2.34±0.20(Predicted)
form :Oil
color :Colourless

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P321 Specific treatment (see … on this label).
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P362 Take off contaminated clothing and wash before reuse.

Description

Mal-PEG2-NHS ester is a PEG linker containing a maleimide group and an NHS ester group. The hydrophilic PEG spacer increases solubility in aqueous media. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The maleimide group will react with a thiol group to form a covalent bond, enabling the connection of biomolecule with a thiol.

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Suppliers and manufacturers

T&W GROUP Shanghai Topbiochem Technology Co., Ltd Hygeia (Chengdu) pharmaceutical technique Co., Ltd Bide Pharmatech Ltd. Hunan HuaTeng Pharmaceutical Co., Ltd., Borenpharm Co., Ltd Jinan elephant international trading co., LTD Zhengzhou Acme Chemical Co., Ltd. Amadis Chemical Company Limited Amatek Scientific Co. Ltd.