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E1271

Sigma-Aldrich

N-Ethylmaleimide

BioXtra, ≥98% (HPLC)

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Synonym(s):
NEM
Empirical Formula (Hill Notation):
C6H7NO2
CAS Number:
128-53-0
Molecular Weight:
125.13
Beilstein:
112448
EC Number:
204-892-4
MDL number:
MFCD00005509
UNSPSC Code:
12352106
PubChem Substance ID:
24894398
NACRES:
NA.21

product line

BioXtra

Quality Level

200

Assay

≥98% (HPLC)

impurities

≤0.001% Phosphorus (P)
≤0.1% Insoluble matter

ign. residue

≤0.1%

bp

210 °C (lit.)

mp

43-46 °C (lit.)

solubility

95% ethanol: 50 mg/mL, clear to slightly hazy (colorless to faint yellow)

anion traces

chloride (Cl-): ≤0.05%
sulfate (SO42-): ≤0.05%

cation traces

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Mg: ≤0.0005%
Na: ≤0.005%
Pb: ≤0.001%
Zn: ≤0.0005%

storage temp.

2-8°C

SMILES string

CCN1C(=O)C=CC1=O

InChI

1S/C6H7NO2/c1-2-7-5(8)3-4-6(7)9/h3-4H,2H2,1H3

InChI key

HDFGOPSGAURCEO-UHFFFAOYSA-N

Gene Information

human ... SLC6A3(6531) , SLC6A4(6532)

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Application

Reagent for the covalent modification of cysteine residues in proteins.

Biochem/physiol Actions

Augments currents from native M-channels in sympathetic neurons and acts as an opener for KCNQ2, KCNQ4 and KCNQ5 channels.
Sulfhydryl alkylating agent that inactivates NADP-dependent isocitrate dehydrogenase and many endonucleases.

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H300,H311,H314,H317

Hazard Classifications

Acute Tox. 2 Oral - Acute Tox. 3 Dermal - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1

WGK

WGK 3

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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