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
Seleccione un Tamaño
| A ustedes/SKU | Disponibilidad | Precio |
|---|---|---|
100 g | Póngase en contacto con nuestro Servicio de Atención al Cliente para disponibilidad | 124,00 € |
500 g | Póngase en contacto con nuestro Servicio de Atención al Cliente para disponibilidad | 245,00 € |
1 kg | Póngase en contacto con nuestro Servicio de Atención al Cliente para disponibilidad | 417,00 € |
Acerca de este artículo
124,00 €
grade
ACS reagent
Quality Segment
agency
reag. Ph. Eur.
product line
EMSURE®
assay
99.0-100.5% (iodometric)
form
crystalline powder
autoignition temp.
380 °C
potency
11900 mg/kg LD50, oral (Rat)
technique(s)
thin layer chromatography (TLC): suitable
impurities
≤0.1% Related substances (unspecified impurities singly) (HPLC), ≤0.15% Related substances (Impurity C) (HPLC), ≤0.15% Related substances (Impurity D) (HPLC), ≤0.2% Oxalic acid, ≤0.2% Related substances (sum of impurities (except impurity A and D)) (HPLC)
sulfated ash (600 °C)
≤0.05%
loss
≤0.1% loss on drying, 105 °C
color
clear
pH
2.2-2.5 (20 °C, 50 g/L in H2O)
solubility
330 g/L
density
1.65 g/cm3 at 20 °C
bulk density
500‑900 kg/m3
anion traces
chloride (Cl-): ≤50 ppm, sulfate (SO42-): ≤20 ppm
cation traces
Cu: ≤5 ppm, Fe: ≤2 ppm, heavy metals: ≤10 ppm
storage temp.
15-25°C
InChI
1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-8,10-11H,1H2
InChI key
TYQCGQRIZGCHNB-UHFFFAOYSA-N
General description
Application
- Determinación sensible en la investigación metabólica: en un estudio se utilizó el ácido (+/-)-4-hidroxi-3-metoximandélico D₃ en un análisis de cromatografía de gases-espectrometría de masas con ionización química de iones negativos, proporcionando un método para la determinación sensible de metabolitos de la tirosina. Esta aplicación propicia el uso de compuestos deuterados en experimentos con trazadores marcados con isótopos estables para investigar el metabolismo en seres humanos (Shimamura et al., 1986).
Analysis Note
Legal Information
1 of 1
Este artículo | |||
|---|---|---|---|
| grade ACS reagent | grade pharmaceutical primary standard | grade - | grade analytical standard |
| assay 99.0-100.5% (iodometric) | assay - | assay 99.0-100.5% | assay - |
| agency reag. Ph. Eur. | agency EP Reference standard | agency tested according to Ph. Eur. | agency - |
| Quality Level 300 | Quality Level - | Quality Level 200 | Quality Level 100 |
| form crystalline powder | form solid | form solid | form solid |
| pH 2.2-2.5 (20 °C, 50 g/L in H2O) | pH - | pH 1.0-2.5 (25 °C, 176 g/L in water) | pH 1.0-2.5 (25 °C, 176 g/L in water) |
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
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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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