This product can be stored at room temperature. Neither a recommended retest date nor an expiration date is assigned to this product, which means that it would fall under the general warranty of one year from date of shipment.
D218200
5,5′-Dithiobis(2-nitrobenzoic acid)
ReagentPlus®, 99%
Synonym(s):
3-Carboxy-4-nitrophenyl disulfide, 6,6′-Dinitro-3,3′-dithiodibenzoic acid, Bis(3-carboxy-4-nitrophenyl) disulfide, DTNB, Ellman’s Reagent
Sign In to View Organizational & Contract Pricing.
Select a Size
Change View
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 1 g | Check Cart for Availability | $36.20 | |
| 5 g | Check Cart for Availability | $86.90 | |
| 10 g | Check Cart for Availability | $156.00 |
About This Item
Linear Formula:
[-SC6H3(NO2)CO2H]2
CAS Number:
Molecular Weight:
396.35
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
200-714-4
Beilstein/REAXYS Number:
1896821
MDL number:
Assay:
99%
Form:
powder
Quality Segment
product line
ReagentPlus®
assay
99%
form
powder
mp
240-245 °C (dec.) (lit.)
SMILES string
OC(=O)c1cc(SSc2ccc(c(c2)C(O)=O)[N+]([O-])=O)ccc1[N+]([O-])=O
InChI
1S/C14H8N2O8S2/c17-13(18)9-5-7(1-3-11(9)15(21)22)25-26-8-2-4-12(16(23)24)10(6-8)14(19)20/h1-6H,(H,17,18)(H,19,20)
InChI key
KIUMMUBSPKGMOY-UHFFFAOYSA-N
General description
DTNB (Ellman’s reagent) is commonly used for quantification of sulfhydryl (thiol) groups in proteins and biomolecules.
Application
5,5′-Dithiobis(2-nitrobenzoic acid) is a water soluble reagent mainly used for the derivatization of sulfhydryl groups.
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
1 of 1
This Item | |||
|---|---|---|---|
| assay 99% | assay ≥98% | assay - | assay 85% |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| mp 240-245 °C (dec.) (lit.) | mp 240-245 °C (dec.) (lit.) | mp - | mp 263-265 °C (lit.) |
| form powder | form powder | form powder | form solid |
| product line ReagentPlus® | product line BioReagent | product line - | product line - |
Still not finding the right product?
Explore all of our products under 5,5′-Dithiobis(2-nitrobenzoic acid)
Storage Class
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
wgk
WGK 2
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Related Content
Pork proteins oxidative modifications under the influence of varied time-temperature thermal treatments: A chemical and redox proteomics assessment.
Mitra B, et al.
Meat Science, 140, 134-144 (2018)
Determination of thiols and disulfides via HPLC quantification of 5-thio-2-nitrobenzoic acid
W Chen, et al.
Journal of Pharmaceutical and Biomedical Analysis, 48, 1375-1380 (2008)
Atef M K Nassar et al.
Molecules (Basel, Switzerland), 25(11) (2020-06-11)
Sumithion (Fenitrothion) (SUM) is an organophosphorus insecticide used to combat a wide variety of plant pests. Exposure to SUM causes significant toxicity to the brain, liver, kidney, and reproductive organs through, for example, binding to DNA, and it induces DNA
Global Trade Item Number
| SKU | GTIN |
|---|---|
| D218200-5G | 04061835282203 |
| D218200-1G | 04061835282197 |
| D218200-10G | 04061835282180 |
-
1) What is the ideal storage temperature for long periods of stability? 2) How long does the product remain stable after manufacturing?
1 answer-
Helpful?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdfHelpful?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
Helpful?
-