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
53370
L-istidina
≥99.0% (AT)
Sinonimo/i:
Acido L-α-amino-β-(4-imidazolil)propionico
Scegli un formato
| Voi/SKU | Disponibilità | Prezzo |
|---|---|---|
25 g | Per informazioni sulla disponibilità, contatta il Servizio Clienti. | 35,40 € |
100 g | Per informazioni sulla disponibilità, contatta il Servizio Clienti. | 133,00 € |
500 g | Per informazioni sulla disponibilità, contatta il Servizio Clienti. | 484,00 € |
Informazioni su questo articolo
35,40 €
Quality Segment
assay
≥99.0% (AT)
form
solid
optical activity
[α]20/D +9.5±0.5°, c = 5% in 5 M HCl
impurities
≤0.3% foreign amino acids
mp
254 °C (dec.) (lit.)
solubility
H2O: 1 g/10 mL, clear, colorless (hot)
anion traces
sulfate (SO42-): ≤100 mg/kg
cation traces
Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH4+: ≤500 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
SMILES string
O.Cl.N[C@@H](Cc1c[nH]cn1)C(O)=O
InChI
1S/C6H9N3O2.ClH.H2O/c7-5(6(10)11)1-4-2-8-3-9-4;;/h2-3,5H,1,7H2,(H,8,9)(H,10,11);1H;1H2/t5-;;/m0../s1
InChI key
CMXXUDSWGMGYLZ-XRIGFGBMSA-N
General description
Biochem/physiol Actions
1 of 1
Questo articolo | |||
|---|---|---|---|
| description ≥99.0% (AT) | description from non-animal source, meets EP testing specifications, suitable for cell culture, 98.5-101.0% | description United States Pharmacopeia (USP) Reference Standard | description ≥98% (HPLC) |
| form solid | form crystalline powder | form - | form - |
| assay ≥99.0% (AT) | assay 98.5-101.0% | assay - | assay ≥98% (HPLC) |
| Quality Level 100 | Quality Level 300 | Quality Level - | Quality Level 200 |
| solubility H2O: 1 g/10 mL, clear, colorless (hot) | solubility H2O: 100 mg/mL | solubility - | solubility H2O: 50 mg/mL, clear, colorless to very faintly yellow |
| optical activity [α]20/D +9.5±0.5°, c = 5% in 5 M HCl | optical activity - | optical activity - | optical activity - |
| mp 254 °C (dec.) (lit.) | mp 254 °C (dec.) (lit.) | mp 254 °C (dec.) (lit.) | mp 254 °C (dec.) (lit.) |
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Classe di stoccaggio
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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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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