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  5. Electron Spin Resonance (ESR/EPR) Spectroscopy
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Electron Spin Resonance (ESR/EPR) Spectroscopy

Electron Spin Resonance (ESR), also known as Electron Paramagnetic Resonance (EPR), is a technique for studying materials with unpaired electrons. ESR spectroscopy helps analyze radicals, transition metal complexes, and defects in solids. To ensure precision, ESR spectroscopy requires reference standards for instrument calibration. At CymitQuimica, we provide ESR/EPR Spectroscopy Standards for various research applications in chemistry, physics, and material sciences.

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products per page. 42 products on this category.

BrandProduct dataPurityPrice rangeEstimated delivery
Indagoo logo
N-TERT-BUTYL-α-PHENYLNITRONE
REF: IN-DA003TD7CAS: 3376-24-7 		98%To inquireFri 28 Mar 25
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4-Methoxy-TEMPO, free radical
REF: IN-DA003LP5CAS: 95407-69-5 		95%28.00 €~164.00 €Fri 28 Mar 25
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4-CARBOXY-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL
REF: IN-DA003L1QCAS: 37149-18-1 		97%To inquireFri 28 Mar 25
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2H-Pyrrole, 3,4-dihydro-2,2,4,4-tetramethyl-, 1-oxide
REF: IN-DA0004B0CAS: 10135-38-3 		98%63.00 €~531.00 €Fri 28 Mar 25
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2,2,6,6-Tetramethylpiperidoxyl
REF: IN-DA0035MSCAS: 2564-83-2 		97%25.00 €~203.00 €Fri 28 Mar 25
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4-Amino-2,2,6,6-tetramethylpiperidino-1-oxyl
REF: IN-DA003KS7CAS: 14691-88-4 		98%To inquireFri 28 Mar 25
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POBN
REF: IN-DA003TTMCAS: 66893-81-0 		98%To inquireFri 28 Mar 25
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4-Oxo-Tempo free radical
REF: IN-DA003LY6CAS: 2896-70-0 		97%25.00 €~551.00 €Fri 28 Mar 25
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4-(2-IODOACETAMIDO)-TEMPO
REF: IN-DA003K01CAS: 25713-24-0 		98%190.00 €~595.00 €Fri 28 Mar 25
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4-CYANO-TEMPO
REF: IN-DA003L9PCAS: 38078-71-6 		97%70.00 €~523.00 €Fri 28 Mar 25
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4-BENZOYLOXY-TEMPO
REF: IN-DA003KSOCAS: 3225-26-1 		97%To inquireFri 28 Mar 25
Indagoo logo
4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy
REF: IN-DA00342NCAS: 2226-96-2 		98%To inquireFri 28 Mar 25
Indagoo logo
4-ISOTHIOCYANATO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL
REF: IN-DA003LLUCAS: 36410-81-8 		97%59.00 €~542.00 €Fri 28 Mar 25
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16-DOXYL-STEARIC ACID
REF: IN-DA003DVJCAS: 53034-38-1 		97.0%To inquireFri 28 Mar 25
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4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl
REF: IN-DA003KLWCAS: 14691-89-5 		98%To inquireFri 28 Mar 25
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5,5-Dimethyl-1-pyrroline N-oxide
REF: IN-DA00345YCAS: 3317-61-1 		97%To inquireFri 28 Mar 25
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2,4,6-Tri-tert-butylnitrosobenzene
REF: 3B-T1534CAS: 24973-59-9 		>98.0%(GC)70.00 €~679.00 €Mon 31 Mar 25
TCI logo
4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation)
REF: 3B-A3235CAS: 14691-88-4 		>98.0%(GC)40.00 €~134.00 €Mon 31 Mar 25
TCI logo
4-Acetamido-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical [Catalyst for Oxidation]
REF: 3B-A1348CAS: 14691-89-5 		>98.0%(GC)62.00 €~205.00 €Mon 31 Mar 25
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4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical
REF: 3B-C1428CAS: 37149-18-1 		>97.0%(GC)(T)59.00 €~318.00 €Mon 31 Mar 25
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N-TERT-BUTYL-α-PHENYLNITRONE
Indagoo logo
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N-TERT-BUTYL-α-PHENYLNITRONE

CAS:3376-24-7
Formula:
C11H17NO
Purity:
98%
Color and Shape:
Solid
Molecular weight:
179.25877999999997

Ref: IN-DA003TD7

1g56.00 €
5g185.00 €
10g231.00 €
25g571.00 €
100gTo inquire
250mg34.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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4-Methoxy-TEMPO, free radical
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4-Methoxy-TEMPO, free radical

CAS:95407-69-5
Formula:
C10H20NO2
Purity:
95%
Color and Shape:
Solid
Molecular weight:
186.2713

Ref: IN-DA003LP5

1g59.00 €
5g164.00 €
250mg28.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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4-CARBOXY-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL
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4-CARBOXY-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL

CAS:37149-18-1
Formula:
C10H18NO3
Purity:
97%
Color and Shape:
Solid
Molecular weight:
200.2548

Ref: IN-DA003L1Q

1g213.00 €
5gTo inquire
100mg61.00 €
250mg114.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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2H-Pyrrole, 3,4-dihydro-2,2,4,4-tetramethyl-, 1-oxide
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2H-Pyrrole, 3,4-dihydro-2,2,4,4-tetramethyl-, 1-oxide

CAS:10135-38-3
Formula:
C8H15NO
Purity:
98%
Color and Shape:
Solid
Molecular weight:
141.2108

Ref: IN-DA0004B0

1g531.00 €
100mg102.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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2,2,6,6-Tetramethylpiperidoxyl
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2,2,6,6-Tetramethylpiperidoxyl

CAS:2564-83-2
Formula:
C9H18NO
Purity:
97%
Color and Shape:
Solid
Molecular weight:
156.2453

Ref: IN-DA0035MS

5g25.00 €
10g25.00 €
25g26.00 €
100g49.00 €
500g148.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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4-Amino-2,2,6,6-tetramethylpiperidino-1-oxyl
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4-Amino-2,2,6,6-tetramethylpiperidino-1-oxyl

CAS:14691-88-4
Formula:
C9H19N2O
Purity:
98%
Color and Shape:
Solid
Molecular weight:
171.26

Ref: IN-DA003KS7

1g28.00 €
5g39.00 €
10g58.00 €
25g110.00 €
100g250.00 €
500gTo inquire
Estimated delivery in United States, on Friday 28 Mar 2025
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POBN
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POBN

CAS:66893-81-0
Formula:
C10H14N2O2
Purity:
98%
Molecular weight:
194.2304

Ref: IN-DA003TTM

100mg119.00 €
500mg239.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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4-Oxo-Tempo free radical
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4-Oxo-Tempo free radical

CAS:2896-70-0
Formula:
C9H16NO2
Purity:
97%
Color and Shape:
Solid
Molecular weight:
170.2288

Ref: IN-DA003LY6

1g25.00 €
5g28.00 €
15g67.00 €
25g67.00 €
100g163.00 €
500g551.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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4-(2-IODOACETAMIDO)-TEMPO
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4-(2-IODOACETAMIDO)-TEMPO

CAS:25713-24-0
Formula:
C11H20IN2O2
Purity:
98%
Color and Shape:
Solid
Molecular weight:
339.1932

Ref: IN-DA003K01

100mg190.00 €
250mg595.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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4-CYANO-TEMPO
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4-CYANO-TEMPO

CAS:38078-71-6
Formula:
C10H17N2O
Purity:
97%
Color and Shape:
Solid
Molecular weight:
181.2548

Ref: IN-DA003L9P

1g185.00 €
5g523.00 €
100mg70.00 €
250mg116.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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discount label
4-BENZOYLOXY-TEMPO
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4-BENZOYLOXY-TEMPO

CAS:3225-26-1
Formula:
C16H22NO3
Purity:
97%
Color and Shape:
Solid
Molecular weight:
276.3508

Ref: IN-DA003KSO

1g26.00 €
5g43.00 €
25g73.00 €
500gTo inquire
250mg22.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy
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4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy

CAS:2226-96-2
Formula:
C9H18NO2
Purity:
98%
Color and Shape:
Solid
Molecular weight:
172.2447

Ref: IN-DA00342N

5g21.00 €
1kg63.00 €
25g21.00 €
5kg148.00 €
100g26.00 €
200g42.00 €
500g53.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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discount label
4-ISOTHIOCYANATO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL
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4-ISOTHIOCYANATO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL

CAS:36410-81-8
Formula:
C10H17N2OS
Purity:
97%
Color and Shape:
Solid
Molecular weight:
213.3198

Ref: IN-DA003LLU

25mg59.00 €
100mg112.00 €
250mg198.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
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discount label
16-DOXYL-STEARIC ACID
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16-DOXYL-STEARIC ACID

CAS:53034-38-1
Formula:
C22H42NO4
Purity:
97.0%
Color and Shape:
Solid
Molecular weight:
384.5732

Ref: IN-DA003DVJ

Undefined sizeTo inquire
Estimated delivery in United States, on Friday 28 Mar 2025
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4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl
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4-Acetamido-2,2,6,6-tetramethylpiperidine 1-oxyl

CAS:14691-89-5
Formula:
C11H21N2O2
Purity:
98%
Color and Shape:
Solid
Molecular weight:
213.29663999999997

Ref: IN-DA003KLW

1g26.00 €
5g39.00 €
10g56.00 €
25g106.00 €
100g193.00 €
500gTo inquire
Estimated delivery in United States, on Friday 28 Mar 2025
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5,5-Dimethyl-1-pyrroline N-oxide
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5,5-Dimethyl-1-pyrroline N-oxide

CAS:3317-61-1
Formula:
C6H11NO
Purity:
97%
Color and Shape:
Solid
Molecular weight:
113.1576

Ref: IN-DA00345Y

1g64.00 €
5g166.00 €
10g234.00 €
25g505.00 €
100gTo inquire
250mg34.00 €
Estimated delivery in United States, on Friday 28 Mar 2025
+ info
discount label
2,4,6-Tri-tert-butylnitrosobenzene
TCI logo
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2,4,6-Tri-tert-butylnitrosobenzene

CAS:24973-59-9
Formula:
C18H29NO
Purity:
>98.0%(GC)
Color and Shape:
White to Green to Blue powder to crystal
Molecular weight:
275.44

Ref: 3B-T1534

1g679.00 €
100mg70.00 €
Estimated delivery in United States, on Monday 31 Mar 2025
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discount label
4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation)
TCI logo
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4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation)

CAS:14691-88-4
Formula:
C9H19N2O
Purity:
>98.0%(GC)
Color and Shape:
Light yellow to Brown powder to crystal
Molecular weight:
171.26

Ref: 3B-A3235

1g134.00 €
200mg40.00 €
Estimated delivery in United States, on Monday 31 Mar 2025
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discount label
4-Acetamido-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical [Catalyst for Oxidation]
TCI logo
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4-Acetamido-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical [Catalyst for Oxidation]

CAS:14691-89-5
Formula:
C11H21N2O2
Purity:
>98.0%(GC)
Color and Shape:
Light yellow to Brown powder to crystaline
Molecular weight:
213.30

Ref: 3B-A1348

5g62.00 €
25g205.00 €
Estimated delivery in United States, on Monday 31 Mar 2025
+ info
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4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical
TCI logo
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4-Carboxy-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical

CAS:37149-18-1
Formula:
C10H18NO3
Purity:
>97.0%(GC)(T)
Color and Shape:
Light yellow to Brown powder to crystal
Molecular weight:
200.26

Ref: 3B-C1428

1g318.00 €
100mg59.00 €
Estimated delivery in United States, on Monday 31 Mar 2025
+ info
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