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Thiophene-2,3-dicarboxylic+acid
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Thiophene-2,3-dicarboxylic+acid
Catalog Number:
(101926-632)
Supplier:
Matrix Scientific
Description:
Matrix Scientific Part Number: 063919-500MG , MDL Number: MFCD16618443
Supplier:
Adipogen
Description:
The 2,3-diaminonaphthalene (DAN) assay is routinely used in the determination of nitrite/nitrate levels in biological fluids and cellular extracts as one indicator of nitric oxide activity. The assay, as reported by Misko, uses the reaction of DAN with NO2- under acidic conditions to form a detectable fluorescent naphthotriazole. The reaction proceeds at acidic pH at room temperature. Fluorescence is monitored following the addition of NaOH, which raises pH, resulting in lower background and increased sensitivity (Ex/Em: ~365/415nm). However, detection at 450nm is recommended to avoid fluorescent blanks and increase sensitivity. The fluorescent background of DAN is low for maximum sensitivity. Detection limits of NO achieved by this method are in the high-pM range. 2,3-Diaminonaphtaline (DAN) is used as a derivatisation-reagent for the determination of selenium at low detection limits. The 4,5-benzopiaselenol-complex can be quantified by photometry or GC.
Catalog Number:
(101909-834)
Supplier:
Matrix Scientific
Description:
Matrix Scientific Part Number: 055639-100MG , MDL Number: MFCD16628251
Catalog Number:
(101928-350)
Supplier:
Matrix Scientific
Description:
Matrix Scientific Part Number: 064775-500MG , MDL Number: MFCD09853872
Catalog Number:
(101845-712)
Supplier:
Matrix Scientific
Description:
Matrix Scientific Part Number: 038541-500MG , MDL Number: MFCD12027391
Supplier:
Matrix Scientific
Description:
MF=C19H25No4 MW=331.42 Cas=185526-32-3 ,250Mg
Catalog Number:
(101845-786)
Supplier:
Matrix Scientific
Description:
Matrix Scientific Part Number: 038578-500MG , MDL Number: MFCD03030508
Catalog Number:
(77003-208)
Supplier:
AMBEED, INC
Description:
(S)-2-((tert-Butoxycarbonyl)amino)-3-(1H-pyrrolo[2,3-b]pyridin-3-yl)propanoic acid, Purity: 95%, CAS number: 146610-21-1, Appearance: Solid, Storage: Sealed in dry, 2-8C, Size: 100MG
Supplier:
AMBEED, INC
Description:
(Z)-2,3-Dibromo-4-oxobut-2-enoic acid, Purity: 98%, CAS Number: 488-11-9, Appearance: Form: Crystal - Powder / Colour: White - Pale-yellow, Storage: Inert atmosphere, Room Temperature, Size: 10g
Supplier:
Thermo Scientific Chemicals
Description:
(Benzenesulphonyl)acetic acid. Grade:98, Melting Point C112-114*. Boiling Point C:NA. C8H8O4S. 3959-23-7. IRRITANT
Supplier:
AMBEED, INC
Description:
2-Oxo-2,3-dihydro-1H-imidazole-4-carboxylic acid, Purity: 95%, CAS Number: 39828-47-2, Appearance: Form: solid, Storage: Sealed in dry, Room Temperature, Size: 250mg
Catalog Number:
(76822-166)
Supplier:
AMBEED, INC
Description:
3-Oxoisoindoline-4-carboxylic acid, Purity: 97%, CAS Number: 935269-27-5, Appearance: Solid, Storage: Sealed in dry, Room Temperature, Size: 250MG
Catalog Number:
(101821-846)
Supplier:
Matrix Scientific
Description:
Matrix Scientific Part Number: 026216-100MG , MDL Number: MFCD08741533
Supplier:
AMBEED, INC
Description:
9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid 97%
Supplier:
Matrix Scientific
Description:
MF=C8H6Cln3O2 MW=211.61 Cas=944709-69-7 ,250Mg
Catalog Number:
(101845-794)
Supplier:
Matrix Scientific
Description:
Matrix Scientific Part Number: 038582-500MG , MDL Number: MFCD03016034
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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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