Trace metal analysis is not performed on this product. The iron and zinc levels are not determined. However, testing for product 54457, HEPES for molecular biology, BioUltra, does include trace metal analysis, included iron and zinc. Please see the link below to review a sample or lot-specific Certificate of Analysis for the 54457, HEPES.
https://www.sigmaaldrich.com/US/en/product/sigma/54457#product-documentation
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| A ustedes/SKU | Disponibilidad | Precio |
|---|---|---|
25 g | Disponible para enviar HOYdesdeToluca | MXP 1,349.00 |
100 g | Disponible para enviar HOYdesdeToluca | MXP 2,732.00 |
250 g | Disponible para enviar HOYdesdeToluca | MXP 6,127.00 |
500 g | Disponible para enviar HOYdesdeToluca | MXP 11,482.00 |
1 kg | Disponible para enviar HOYdesdeToluca | MXP 18,660.00 |
5 kg | Disponible para enviar HOYdesdeToluca | MXP 69,577.00 |
25 kg | Fecha estimada de envío15 de junio de 2026desdeToluca | Preguntar |
50 kg | Fecha estimada de envío15 de junio de 2026desdeToluca | Preguntar |
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Quality Segment
assay
≥99.5% (titration)
form
crystalline powder
storage condition
dry at room temperature
technique(s)
cell culture | mammalian: suitable
color
white
pH
5.0-6.5 (25 °C, 238 g/L)
useful pH range
6.8-8.2
pKa (25 °C)
7.5
solubility
water: 500 mg/mL, clear, colorless
suitability
suitable for component for culture media, suitable for enzyme extraction
application(s)
advanced drug delivery
diagnostic assay manufacturing
general analytical
life science and biopharma
pharmaceutical
SMILES string
OCCN1CCN(CC1)CCS(O)(=O)=O
InChI
1S/C8H18N2O4S/c11-7-5-9-1-3-10(4-2-9)6-8-15(12,13)14/h11H,1-8H2,(H,12,13,14)
InChI key
JKMHFZQWWAIEOD-UHFFFAOYSA-N
General description
Muy utilizado en cultivo celular, HEPES destaca en el mantenimiento del pH fisiológico a pesar de las fluctuaciones en la concentración de dióxido de carbono producido por la respiración celular, una característica no tan prominente en los amortiguadores de bicarbonato. Actúa como separador anfolítico para crear gradientes de pH en el enfoque isoeléctrico y exhibe menos interferencia en las reacciones enzimáticas de restricción del ADN en comparación con los amortiguadores que constan de menos grupos amina sustituidos, como el Tris. Más allá de estas aplicaciones, el HEPES puede encontrar aplicación en varios estudios biológicos y bioquímicos, como la inmunoprecipitación, la lisis celular y la obtención de imágenes de células vivas. Su versatilidad lo convierte en una herramienta indispensable en diversas aplicaciones experimentales.
Application
- Como componente en el medio Danieau, que se utiliza para evitar la formación del pigmento melanina después de la gastrulación del embrión del pez cebra
- Como componente de la disolución de Hanks utilizada en los ensayos de degradación del hierro
- Como componente del medio HEPES en la transfección del cultivo celular con plásmidos
- Junto con RPMI-1640, L-glutamina, FBS, piruvato sódico y β-mercaptoetanol para el cultivo de células de insulinoma de rata
- Como suplemento en el medio TCM199 para lavar los ovocitos frescos necesarios para los estudios de transferencia nuclear
Features and Benefits
- Producto de gran pureza para investigación bioquímica y biológica
- Adecuado para cultivo celular
- Muy hidrosoluble con un intervalo de pH útil de 6,8 - 8,2 y un pKa de 7,5 a 25 °C.
Other Notes
Compare fácilmente las especificaciones de los productos HEPES con la Tabla de especificaciones de HEPES.
Legal Information
1 of 1
Este artículo | |||
|---|---|---|---|
| assay ≥99.5% (titration) | assay ≥99.5% (titration) | assay ≥99.5% (titration) | assay - |
| technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable, competitive inhibition ELISA: suitable | technique(s) cell culture | embryo: suitable | technique(s) cell culture | mammalian: suitable |
| Quality Level 400 | Quality Level 400 | Quality Level 400 | Quality Level 200 |
| form crystalline powder | form crystalline powder | form powder | form liquid |
| application(s) advanced drug delivery | application(s) advanced drug delivery | application(s) - | application(s) diagnostic assay manufacturing |
| storage condition dry at room temperature | storage condition dry at room temperature | storage condition - | storage condition - |
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Clase de almacenamiento
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Hello, Is it possible that there are traces of iron or zinc in the final product ? Thank you
1 answer-
Helpful?
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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?
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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
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What concentration of HEPES should be used for cell culture without CO2, to maintain optimal pH?
1 answer-
This product has not been tested for cell culture use. A better choice is H4034 HEPES BioPerformance Certified, ?99.5% (titration), suitable for cell culture, or one of the other products referred to in the Technical Bulletin found in the documentation section of the product page:
https://www.sigmaaldrich.com/product/sigma/h4034#product-documentationHelpful?
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What is the purpose of using HEPES in cell culture?
1 answer-
HEPES provides supplemental buffering for media in pH range of 7.2 to 7.6. It has no nutritional value to cells.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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What is the concentration of HEPES used in cell culture?
1 answer-
HEPES is typically used in cell culture in the range of 10-25 mM.
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