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.pdf
85707
Acido 2,5-diidrossibenzoico
suitable for matrix substance for MALDI-MS, >99.0% (HPLC)
Sinonimo/i:
2,5-DHBA, Acido gentisico, DHB, Hydroquinonecarboxylic acid
Scegli un formato
| Voi/SKU | Disponibilità | Prezzo |
|---|---|---|
10 mg | Per informazioni sulla disponibilità, contatta il Servizio Clienti. | 26,00 € |
250 mg | Per informazioni sulla disponibilità, contatta il Servizio Clienti. | 106,00 € |
1 g | Per informazioni sulla disponibilità, contatta il Servizio Clienti. | 271,00 € |
Informazioni su questo articolo
26,00 €
Quality Segment
assay
>99.0% (HPLC)
form
powder
analyte functional class(es)
polymers
analyte chemical class(es)
glycans, lipids, organic molecules, peptides, proteins
technique(s)
MALDI-MS: suitable
mp
200-207 °C, 204-208 °C (lit.)
cation traces
Ba: ≤5 mg/kg, Ca: ≤5 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, K: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
ε (extinction coefficient)
>2000 at 337 nm
suitability
suitable for matrix substance for MALDI-MS
SMILES string
OC(=O)c1cc(O)ccc1O
InChI
1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11)
InChI key
WXTMDXOMEHJXQO-UHFFFAOYSA-N
Application
1 of 1
Questo articolo | |||
|---|---|---|---|
| description suitable for matrix substance for MALDI-MS, >99.0% (HPLC) | description analytical standard | description suitable for matrix substance for MALDI-MS, ≥99.5% (HPLC), Ultra pure | description certified reference material, pharmaceutical secondary standard |
| assay >99.0% (HPLC) | assay ≥99.0% (HPLC) | assay ≥99.5% (HPLC) | assay - |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 300 |
| mp 204-208 °C (lit.), 200-207 °C | mp 204-208 °C (lit.) | mp 203-207 °C, 204-208 °C (lit.) | mp 204-208 °C (lit.) |
| form powder | form - | form - | form - |
| technique(s) MALDI-MS: suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) MALDI-MS: suitable | technique(s) - |
| analyte chemical class(es) glycans, lipids, organic molecules, peptides, proteins | analyte chemical class(es) - | analyte chemical class(es) glycans, lipids, organic molecules, peptides, proteins | analyte chemical class(es) - |
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Parola di avvertenza
Warning
Codici di pericolo
Avvertenze di sicurezza
Hazard Classifications
Acute Tox. 4 Oral
Classe di stoccaggio
11 - Combustible Solids
Che succede?
WGK 3
DPI (dispositivi di protezione individuale)
dust mask type N95 (US), Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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