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N-[2-(Dimethylamino)ethyl]-N-methylguanidinehydroiodide
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N-[2-(Dimethylamino)ethyl]-N-methylguanidinehydroiodide
Catalog Number:
(82022-846)
Supplier:
G-Biosciences
Description:
Ellman's reagent is a versatile, water-soluble compound for quantifying free sulfhydryl groups in solution. It reacts with a free sulfhydryl group to yield a mixed disulfide and 2-nitro-5-thiobenzoic acid (NTB), a measurable yellow colored product at 412nm.
Ellman's reagent is very useful as a free sulfhydryl assay reagent due to its high specificity for -SH groups at neutral pH, high molar extinction coefficient and short reaction time.
Catalog Number:
(TS19971-0250)
Supplier:
THERMO FISHER SCIENTIFIC CHEMICALS
Description:
Benzeneseleninic anhydride 98%
Catalog Number:
(76720-266)
Supplier:
AMBEED, INC
Description:
O-Methylisourea hemisulfate 98,5%
Catalog Number:
(76694-956)
Supplier:
AMBEED, INC
Description:
Benzeneseleninic anhydride 98%
Catalog Number:
(AAAL12386-03)
Supplier:
Thermo Scientific Chemicals
Description:
. Grade:99, Melting Point C160-162*. Boiling Point C:NA. C15H22O2. 16225-26-6. IRRITANT
Catalog Number:
(TS23303-0250)
Supplier:
THERMO FISHER SCIENTIFIC CHEMICALS
Description:
O-Methylisourea hemisulphate 94%
Catalog Number:
(TS17656-5000)
Supplier:
THERMO FISHER SCIENTIFIC CHEMICALS
Description:
Iodosobenzene diacetate 98%
Catalog Number:
(TS42819-2500)
Supplier:
THERMO FISHER SCIENTIFIC CHEMICALS
Description:
Aluminium acetate basic 90%
Supplier:
Adipogen
Description:
A sensitive reagent for measuring the free sulfhydryl content in proteins, peptides, and tissues. Used to characterize reactive thiol groups and photometric determination of thiols and for measuring low-molecular mass thiols such as glutathione in both pure solutions and biological samples, such as blood. It can also measure the number of thiol groups on proteins. Through reaction with aliphatic thiol groups a mixed disulfide of protein thiol and one mole of 2-nitro-5-thiobenzoate per mole of protein sulfhydryl group is being formed. DTNB has little absorbance. Reaction with -SH groups on proteins (from any solvent accessible Cys) under mild alkaline conditions (pH 7-8) produces the 2-nitro-5-thiobenzoate anion, which gives an intense yellow color with an absorption maximum at 409.5nm (Extinction coefficient: 14150 M-1*cm-1). Sensitive to various buffer ions, therefore, the extinction coefficient used to calculate the number of sulfhydryl groups must be matched to the reaction conditions. In case the thiol groups are in disulfide bonds, they must be reduced under anaerobic conditions prior to reaction with DTNB.
Supplier:
Argos Technologies
Description:
PolarSafe™ cryogenic storage vials provide safe and secure biological sample storage in temperatures as low as –196 °C.
Supplier:
AMBEED, INC
Description:
3,5-Di-tert-butylbenzoic acid 99%
Catalog Number:
(76916-976)
Supplier:
AOB CHEM USA
Description:
3,5-Di-tert-butylbenzoic acid ≥97%
Supplier:
AMBEED, INC
Description:
N,N,N',N',N''-Pentamethyldiethylenetriamine 98%
Catalog Number:
(TS43822-0050)
Supplier:
THERMO FISHER SCIENTIFIC CHEMICALS
Description:
3,5-Di-tert-butylbenzoic acid 99%
Supplier:
TCI America
Description:
CAS Number: 16225-26-6
MDL Number: MFCD00082727 Molecular Formula: C15H22O2 Molecular Weight: 234.34 Purity/Analysis Method: >98.0% (GC,T) Form: Crystal Melting point (°C): 173
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 is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the
is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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