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ChemicalBook >> CAS DataBase List >> Mal-PEG3-NHS ester

Mal-PEG3-NHS ester

Mal-PEG3-NHS ester price.
  • $60 - $2220
  • Product name: Mal-PEG3-NHS ester
  • CAS: 1537892-36-6
  • MF: C17H22N2O9
  • MW: 398.36
  • EINECS:
  • MDL Number:MFCD26127782
  • Synonyms:Mal-PEG3-NHS ester;2,5-Dioxo-1-pyrrolidinyl 3-[2-[2-[2-(2,5-dioxo-2,5-dihydro-1-pyrrolyl)ethoxy]ethoxy]ethoxy]propanoate;Propanoic acid, 3-[2-[2-[2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethoxy]ethoxy]ethoxy]-, 2,5-dioxo-1-pyrrolidinyl ester;Mal-PEG3-CH2CH2COONHS;Maleimide-PEG3-succinimidyl ester;MAL-PEG3-PA-NHS;2,5-Dioxopyrrolidin-1-yl 3-(2-(2-(2-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)ethoxy)ethoxy)ethoxy)propanoate;Mal-PEG3-NHS
Price24 Properties Safety Information Description
24 prices
Selected condition：
Brand
  • aablocks
  • ACHEMBLOCK
  • Acrotein
  • AK Scientific
  • Apolloscientific
  • Arctom
  • BroadPharm
  • Chemenu
Package
  • 25mg
  • 50mg
  • 100mg
  • 250mg
  • 0.25g
  • 500mg
  • 0.5g
  • 1g
  • 5g
  • Manufactureraablocks
  • Product numberAA00HY38
  • Product description2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95%
  • Packaging100mg
  • Price$60
  • Updated2026-05-29
  • Buy
  • Manufactureraablocks
  • Product numberAA00HY38
  • Product description2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95%
  • Packaging250mg
  • Price$102
  • Updated2026-05-29
  • Buy
  • Manufactureraablocks
  • Product numberAA00HY38
  • Product description2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95%
  • Packaging1g
  • Price$272
  • Updated2026-05-29
  • Buy
  • Manufactureraablocks
  • Product numberAA00HY38
  • Product description2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95%
  • Packaging5g
  • Price$1127
  • Updated2026-05-29
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberV143295
  • Product description2,5-Dioxo-1-pyrrolidinyl 3-[2-[2-[2-(2,5-dioxo-2,5-dihydro-1-pyrrolyl)ethoxy]ethoxy]ethoxy]propanoate 98%
  • Packaging250MG
  • Price$155
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberV143295
  • Product description2,5-Dioxo-1-pyrrolidinyl 3-[2-[2-[2-(2,5-dioxo-2,5-dihydro-1-pyrrolyl)ethoxy]ethoxy]ethoxy]propanoate 98%
  • Packaging1G
  • Price$415
  • Updated2026-05-27
  • Buy
  • ManufacturerAcrotein
  • Product numberB-1815
  • Product descriptionMal-PEG3-CH2CH2COONHS 97%
  • Packaging1g
  • Price$445.5
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberB-1815
  • Product descriptionMal-PEG3-CH2CH2COONHS 97%
  • Packaging0.25g
  • Price$165
  • Updated2026-05-25
  • Buy
  • ManufacturerAcrotein
  • Product numberB-1815
  • Product descriptionMal-PEG3-CH2CH2COONHS 97%
  • Packaging0.5g
  • Price$275
  • Updated2026-05-25
  • Buy
  • ManufacturerAK Scientific
  • Product number0415DY
  • Product descriptionMal-PEG3-NHSester
  • Packaging1g
  • Price$2220
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIPG1504
  • Product descriptionMal-PEG3-NHS ester
  • Packaging100mg
  • Price$662
  • Updated2021-12-16
  • Buy
  • ManufacturerArctom
  • Product numberHT-10771
  • Product descriptionMal-PEG3-NHS a‰￥95%
  • Packaging1g
  • Price$380
  • Updated2026-05-25
  • Buy
  • ManufacturerArctom
  • Product numberHT-10771
  • Product descriptionMal-PEG3-NHS a‰￥95%
  • Packaging1g
  • Price$380
  • Updated2026-05-26
  • Buy
  • ManufacturerBroadPharm
  • Product numberbp-21855
  • Product descriptionMal-PEG3-NHS ester 98%
  • Packaging250MG
  • Price$150
  • Updated2026-05-24
  • Buy
  • ManufacturerBroadPharm
  • Product numberbp-21855
  • Product descriptionMal-PEG3-NHS ester 98%
  • Packaging100MG
  • Price$95
  • Updated2026-05-24
  • Buy
  • ManufacturerBroadPharm
  • Product numberBP-21855
  • Product descriptionMal-PEG3-NHSester 98%
  • Packaging500mg
  • Price$840
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
aablocks AA00HY38 2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95% 100mg $60 2026-05-29 Buy
aablocks AA00HY38 2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95% 250mg $102 2026-05-29 Buy
aablocks AA00HY38 2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95% 1g $272 2026-05-29 Buy
aablocks AA00HY38 2,5-Dioxopyrrolidin-1-Yl 3-(2-(2-(2-(2,5-Dioxo-2,5-Dihydro-1H-Pyrrol-1-Yl)Ethoxy)Ethoxy)Ethoxy)Propanoate 95% 5g $1127 2026-05-29 Buy
ACHEMBLOCK V143295 2,5-Dioxo-1-pyrrolidinyl 3-[2-[2-[2-(2,5-dioxo-2,5-dihydro-1-pyrrolyl)ethoxy]ethoxy]ethoxy]propanoate 98% 250MG $155 2026-05-27 Buy
ACHEMBLOCK V143295 2,5-Dioxo-1-pyrrolidinyl 3-[2-[2-[2-(2,5-dioxo-2,5-dihydro-1-pyrrolyl)ethoxy]ethoxy]ethoxy]propanoate 98% 1G $415 2026-05-27 Buy
Acrotein B-1815 Mal-PEG3-CH2CH2COONHS 97% 1g $445.5 2026-05-25 Buy
Acrotein B-1815 Mal-PEG3-CH2CH2COONHS 97% 0.25g $165 2026-05-25 Buy
Acrotein B-1815 Mal-PEG3-CH2CH2COONHS 97% 0.5g $275 2026-05-25 Buy
AK Scientific 0415DY Mal-PEG3-NHSester 1g $2220 2021-12-16 Buy
Apolloscientific BIPG1504 Mal-PEG3-NHS ester 100mg $662 2021-12-16 Buy
Arctom HT-10771 Mal-PEG3-NHS a‰￥95% 1g $380 2026-05-25 Buy
Arctom HT-10771 Mal-PEG3-NHS a‰￥95% 1g $380 2026-05-26 Buy
BroadPharm bp-21855 Mal-PEG3-NHS ester 98% 250MG $150 2026-05-24 Buy
BroadPharm bp-21855 Mal-PEG3-NHS ester 98% 100MG $95 2026-05-24 Buy
BroadPharm BP-21855 Mal-PEG3-NHSester 98% 500mg $840 2021-12-16 Buy
Next Last

Properties

Boiling point :552.4±60.0 °C(Predicted)
Density :1.39±0.1 g/cm3(Predicted)
storage temp. :-20°C, protect from light, stored under nitrogen
solubility :Soluble in DCM
pka :-2.34±0.20(Predicted)
form :Liquid
color :Colorless to light yellow

Safety Information

Symbol(GHS): Exclamation Mark (GHS07)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
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:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P330 Rinse mouth.
P332+P313 IF SKIN irritation occurs: Get medical advice/attention.
P337+P313 IF eye irritation persists: Get medical advice/attention.
P362 Take off contaminated clothing and wash before reuse.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P501 Dispose of contents/container to..…

Description

Mal-PEG3-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

TargetMol Chemicals Inc.
Mal-PEG3-NHS ester
$31.00
Mal-PEG3-NHS ester CAS:1537892-36-6
Xian confluore Biological Technology Co., Ltd.
Mal-PEG3-NHS ester
Mal-PEG3-NHS ester CAS:1537892-36-6
TargetMol Chemicals Inc.
XIAMEN SINOPEG BIOTECH CO., LTD.
Hangzhou Huarong Pharm Co., Ltd.
Nextpeptide Inc
Hangzhou MolCore BioPharmatech Co.,Ltd.
Jilin Chinese Academy of Sciences-yanshen Technology
Chongqing Chemdad Co., Ltd
Chongqing jooe co., ltd