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
Fortfahren mit
69453
L-Homocystein
≥98.0% (NT)
Synonym(e):
(S)-2-Amino-4-mercaptobuttersäure
Größe auswählen
| Ihnen/SKU | Verfügbarkeit | Preis |
|---|---|---|
10 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 50.50 |
50 mg | Warenkorb auf Verfügbarkeit prüfen | CHF 200.00 |
Über diesen Artikel
Produktname
L-Homocystein, ≥98.0% (NT)
Quality Segment
assay
≥98.0% (NT)
form
powder
optical activity
[α]/D 25.5±1.5°, c = 1 in 1 M HCl
color
white
mp
263-265 °C
application(s)
cell analysis
relevant disease(s)
Alzheimer′s disease
storage temp.
−20°C
SMILES string
N[C@@H](CCS)C(O)=O
InChI
1S/C4H9NO2S/c5-3(1-2-8)4(6)7/h3,8H,1-2,5H2,(H,6,7)/t3-/m0/s1
InChI key
FFFHZYDWPBMWHY-VKHMYHEASA-N
General description
Application
Biochem/physiol Actions
Packaging
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| form powder | form powder | form powder | form powder |
| assay ≥98.0% (NT) | assay ≥95% (titration) | assay ≥98% (HPLC) | assay ≥98% (TLC) |
| storage temp. −20°C | storage temp. −20°C | storage temp. - | storage temp. - |
| mp 263-265 °C | mp 232-233 °C (lit.) | mp 281-284 °C (dec.) (lit.) | mp 185 °C |
| color white | color - | color white to off-white | color white |
| optical activity [α]/D 25.5±1.5°, c = 1 in 1 M HCl | optical activity - | optical activity - | optical activity - |
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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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