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04260

N-Ethylmaleimide

purum p.a., ≥99.0% (HPLC)

Synonym(s):

NEM

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About This Item

Empirical Formula (Hill Notation):
C6H7NO2
CAS Number:
128-53-0
Molecular Weight:
125.13
NACRES:
NA.26
PubChem Substance ID:
329747901
UNSPSC Code:
12352209
EC Number:
204-892-4
MDL number:
MFCD00005509
Beilstein/REAXYS Number:
112448
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grade

purum p.a.

Quality Level

200

assay

≥99.0% (HPLC)

ign. residue

≤0.05%

bp

210 °C (lit.)

mp

43-46 °C

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg

cation traces

Ca: ≤50 mg/kg, Cd: ≤50 mg/kg, Co: ≤50 mg/kg, Cu: ≤50 mg/kg, Fe: ≤50 mg/kg, K: ≤100 mg/kg, Na: ≤100 mg/kg, Ni: ≤50 mg/kg, Pb: ≤50 mg/kg, Zn: ≤50 mg/kg

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)

Application

N-Ethylmaleimide has been used to measure low molecular weight thiols bound to plasma proteins.
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.

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pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

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

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

flash_point_f

163.2 °F - closed cup

flash_point_c

72.9 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN6714
BCCM8603
BCCM2417
BCCM2232
BCCK0315

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Global Trade Item Number

SKUGTIN
93598-100MG04061833282946
I29204-100G04061833848777
I29204-1KG04061833848784
804812050004022536386508
804812905004022536386515
804812010004022536386492
04260-5G-F04061838629319
04260-25G-F04061838629302