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ChemicalBook >> CAS DataBase List >> 2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-OXYL-3-CARBOXYLIC ACID N-HYDROXYSUCCINIMIDE ESTER

2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-OXYL-3-CARBOXYLIC ACID N-HYDROXYSUCCINIMIDE ESTER

2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-OXYL-3-CARBOXYLIC ACID N-HYDROXYSUCCINIMIDE ESTER price.
  • $90.65 - $1593.9
  • Product name: 2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-OXYL-3-CARBOXYLIC ACID N-HYDROXYSUCCINIMIDE ESTER
  • CAS: 37558-29-5
  • MF: C13H17N2O5*
  • MW: 281.28
  • EINECS:
  • MDL Number:MFCD00066369
  • Synonyms:OXYL-1-NHS;1h-pyrrol-1-yloxy,3-[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]-2,5-dihydro-2,2, ;5-tetramethyl- ;1-OXYL-2,2,5,5-TETRAMETHYLPYRROLINE-3-CARBOXYLATE N-HYDROXYSUCCINIMIDE ESTER;2,2,5,5-TETRAMETHYL-3-PYRROLIN-1-OXYL-3-CARBOXYLIC ACID N-HYDROXYSUCCINIMIDE ESTER;3-[[(2,5-Dioxo-1-pyrrolidinyl)oxy]carbonyl]-2,5-dihydro-2,2,5,5-tetramethyl-1H-Pyrrol-1-yloxy;NSC 319633;Tempyo Ester
Price13 Properties Safety Information Description
13 prices
Selected condition：
Brand
  • American Custom Chemicals Corporation
  • Cayman Chemical
  • Thermo Scientific Chemicals
  • TRC
Package
  • 5mg
  • 10MG
  • 25mg
  • 50mg
  • 100MG
  • 0.25g
  • 1g
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0006956
  • Product description1-OXYL-2,2,5,5-TETRAMETHYLPYRROLINE-3-CARBOXYLATE N-HYDROXYSUCCINIMIDE ESTER 95.00%
  • Packaging10MG
  • Price$704.55
  • Updated2021-12-16
  • Buy
  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0006956
  • Product description1-OXYL-2,2,5,5-TETRAMETHYLPYRROLINE-3-CARBOXYLATE N-HYDROXYSUCCINIMIDE ESTER 95.00%
  • Packaging100MG
  • Price$1593.9
  • Updated2021-12-16
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging50mg
  • Price$759
  • Updated2026-04-30
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging5mg
  • Price$96
  • Updated2024-03-01
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging5mg
  • Price$127
  • Updated2026-04-30
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging10mg
  • Price$182
  • Updated2024-03-01
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging10mg
  • Price$241
  • Updated2026-04-30
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging25mg
  • Price$310
  • Updated2024-03-01
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging25mg
  • Price$412
  • Updated2026-04-30
  • Buy
  • ManufacturerCayman Chemical
  • Product number16148
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98%
  • Packaging50mg
  • Price$570
  • Updated2024-03-01
  • Buy
  • ManufacturerThermo Scientific Chemicals
  • Product numberA17667
  • Product description2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl-3-carboxylic acid N-hydroxysuccinimide ester, 98+%
  • Packaging1g
  • Price$207.65
  • Updated2026-04-24
  • Buy
  • ManufacturerThermo Scientific Chemicals
  • Product numberA17667
  • Product description2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl-3-carboxylic acid N-hydroxysuccinimide ester, 98+%
  • Packaging0.25g
  • Price$90.65
  • Updated2026-04-24
  • Buy
  • ManufacturerTRC
  • Product numberO874000
  • Product description1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylateN-HydroxysuccinimideEster
  • Packaging25mg
  • Price$305
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
American Custom Chemicals Corporation CHM0006956 1-OXYL-2,2,5,5-TETRAMETHYLPYRROLINE-3-CARBOXYLATE N-HYDROXYSUCCINIMIDE ESTER 95.00% 10MG $704.55 2021-12-16 Buy
American Custom Chemicals Corporation CHM0006956 1-OXYL-2,2,5,5-TETRAMETHYLPYRROLINE-3-CARBOXYLATE N-HYDROXYSUCCINIMIDE ESTER 95.00% 100MG $1593.9 2021-12-16 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 50mg $759 2026-04-30 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 5mg $96 2024-03-01 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 5mg $127 2026-04-30 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 10mg $182 2024-03-01 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 10mg $241 2026-04-30 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 25mg $310 2024-03-01 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 25mg $412 2026-04-30 Buy
Cayman Chemical 16148 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester ≥98% 50mg $570 2024-03-01 Buy
Thermo Scientific Chemicals A17667 2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl-3-carboxylic acid N-hydroxysuccinimide ester, 98+% 1g $207.65 2026-04-24 Buy
Thermo Scientific Chemicals A17667 2,2,5,5-Tetramethyl-3-pyrrolin-1-oxyl-3-carboxylic acid N-hydroxysuccinimide ester, 98+% 0.25g $90.65 2026-04-24 Buy
TRC O874000 1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylateN-HydroxysuccinimideEster 25mg $305 2021-12-16 Buy

Properties

Melting point :175-178 °C
storage temp. :-20°C Freezer, Under Inert Atmosphere
solubility :Methanol
form :Solid
color :Yellow
Stability :Moisture Sensitive: Desiccate
CAS DataBase Reference :37558-29-5
EPA Substance Registry System :1H-Pyrrol-1-yloxy, 3-[[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl]-2,5-dihydro-2,2,5,5-tetramethyl- (37558-29-5)

Safety Information

Symbol(GHS):
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
Precautionary statements:

Description

1-Oxyl-2,2,5,5-tetramethylpyrroline-3-carboxylate NHS ester is an N-hydroxysuccinimide ester of the nitroxide spin label 2,2,5,5-tetramethyl-3-carboxylpyrrolin-1-oxyl, also known as tempyo. This ester is an active acylating agent that preferentially targets α-amino groups. This reagent can be used to spin label proteins and aminoacylated RNA species.

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Suppliers and manufacturers

XIAMEN AMITY INDUSTRY AND TRADE CO., LTD.
DAYANG CHEM (HANGZHOU) CO.,LTD J & K SCIENTIFIC LTD. Meryer (Shanghai) Chemical Technology Co., Ltd. 3B Pharmachem (Wuhan) International Co.,Ltd. Alfa Aesar Chemsky（shanghai）International Co.,Ltd. Thermo Fisher Scientific Shanghai EFE Biological Technology Co., Ltd. Shandong Ono Chemical Co., Ltd.