This material should be stored refrigerated temperature at 2 - 8 °C. The product is assigned a retest date of approximately 2 years from the date of Quality release. The quality of this item cannot be quatanteed if stored outside of the recommended conditions for extended periods. Please see the link below to review the lot specific Certificate of Analysis to determine retest date:
https://www.sigmaaldrich.com/product/sigma/h8502#product-documentation
H8502
Dopamina hydrochloride
≥98% (TLC), powder, neurotransmitter
Sinónimos:
2-(3,4-Dihidroxifenil)etilamina hydrochloride, 3,4-Dihidroxifenetilamina hydrochloride, 3-Hidroxitiramina hydrochloride, 4-(2-Aminoetil)-1,2-bencenodiol hydrochloride
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About This Item
Productos recomendados
Nombre del producto
Dopamina hydrochloride,
form
powder
Quality Level
color
light tan
mp
248-250 °C (lit.)
solubility
alcohol: 20 mg/mL
H2O: soluble
storage temp.
2-8°C
SMILES string
Cl[H].NCCc1ccc(O)c(O)c1
InChI
1S/C8H11NO2.ClH/c9-4-3-6-1-2-7(10)8(11)5-6;/h1-2,5,10-11H,3-4,9H2;1H
InChI key
CTENFNNZBMHDDG-UHFFFAOYSA-N
Gene Information
human ... ADRB1(153)
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General description
Application
- para estudiar la modulación transitoria mediada por dopamina de las respuestas fisiológicas de los camarones patiblancos Litopenaeus vannamei.[6]
- para estudiar los cambios mediados por dopamina en la sensibilidad inmunitaria a Lactococcus garvieae en el camarón gigante de agua dulce, Macrobrachium rosenbergii.[7]
- para estudiar la relación molecular entre el estrés oxidativo inducido por dopamina y la toxicidad mHtt (mutante de la huntingtina) en relación con la activación de la ruta de la autofagia en un modelo ‘in vitro’ de la enfermedad de Huntington.[8]
- como sustrato de la reacción en cascada del sistema de la profenoloxidasa (PPO) en el ensayo antimicrobiano dirigido a Staphylococcus aureus resistente a la meticilina (MRSA) en la fase de biopelícula.[9]
- añadido exógenamente al medio de cultivo para estudiar su efecto sobre los gusanos H. contortus hembra.[10]
Features and Benefits
Caution
related product
signalword
Warning
hcodes
Hazard Classifications
Skin Sens. 1
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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How long can it be stored? I found two in our lab, but one at room temperature for years and another one in 10 oC fridge.
1 answer-
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Upon dissolving the H8502 powder, the solution turned dark purple/black. What could be the cause of this discoloration? Can the product still be considered suitable for use?
1 answer-
Regarding the solubility of product H8502, it can be dissolved in alcohol at a concentration of 20 mg/mL or in water (H2O) at 100 mg/mL. It is recommended that solutions be prepared fresh and not stored for long-term use. Preparing aliquots for storage at -20°C or keeping the product in solution at 4-8°C is not advised.
Dopamine, the active component, is sensitive to light and the free base form is particularly prone to oxidation. Solutions with a pH range of 5.4 to 6.8 have been reported to remain stable for a maximum of 48 hours at 25°C, beyond which the solution may darken and become unusable.
Dopamine solutions should not be mixed with alkalis, iron salts, or oxidizing agents, and are known to be incompatible with certain antibiotics, including amphotericin, ampicillin, gentamicin sulfate, and benzylpenicillin.
In the literature, you can find some articles where the stability of this compound is indicated. For example: https://www.ncbi.nlm.nih.gov/pubmed/14651669
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Is this product analytical standard that can be used in LCMSMS to quantify the amount of Dopamine?
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Unfortunately, this product is not tested as an analytical standard for use in LCMSMS.
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Can it be stored at -20C
1 answer-
The recommended storage temperature for this product is 2-8°C. In general, powder materials are not affected by freezer storage, however, this item has not been tested under these storage conditions.
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