H7250
Synonym(s):
2-(4-Imidazolyl)ethylamine dihydrochloride
Histamine dihydrochloride, ≥99% (TLC), powder
1S/C5H9N3.2ClH/c6-2-1-5-3-7-4-8-5;;/h3-4H,1-2,6H2,(H,7,8);2*1H
PPZMYIBUHIPZOS-UHFFFAOYSA-N
Cl[H].Cl[H].NCCc1c[nH]cn1
≥99% (TLC)
powder
white to off-white
249-252 °C (lit.)
2-8°C
human ... HRH1(3269), HRH2(3274)
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This Item | 53300 | H0600000 | 1309009 |
|---|---|---|---|
| form powder | form powder or crystals | form - | form - |
| assay ≥99% (TLC) | assay ≥99.0% (AT) | assay - | assay - |
| Quality Level 200 | Quality Level - | Quality Level - | Quality Level - |
| storage temp. 2-8°C | storage temp. - | storage temp. 2-8°C | storage temp. 2-8°C |
| color white to off-white | color - | color - | color - |
| mp 249-252 °C (lit.) | mp 244-247 °C, 249-252 °C (lit.) | mp 249-252 °C (lit.) | mp 249-252 °C (lit.) |
Danger
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3
Respiratory system
11 - Combustible Solids
WGK 2
Not applicable
Not applicable
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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This product is sold by weight. It is a powder that is at least 99% pure. There is no unit value associated with this material. The 'SI' term tends to refer to serum levels as nmol/L.
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How does the storage temperature relate to shipping conditions?
The storage conditions that a Sigma-Aldrich catalog and label recommend for products are deliberately conservative. For many products, long-term storage at low temperatures will increase the time during which they are expected to remain in specification and therefore are labeled accordingly. Where short-term storage, shipping time frame, or exposure to conditions other than those recommended for long-term storage will not affect product quality, Sigma-Aldrich will ship at ambient temperature. The products sensitive to short-term exposure to conditions other than their recommended long-term storage are shipped on wet or dry ice. Ambient temperature shipping helps to control shipping costs for our customers. At any time, our customers can request wet- or dry-ice shipment, but the special handling is at customer expense if our product history indicates that the product is stable for regular shipment.
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How should Product H7250, Histamine dihydrochloride, be dissolved?
We test the solubility of this product in water at a concentration of 50 mg/mL. This yields a clear, colorless to faint yellow solution.
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How should Product H7250, Histamine dihydrochloride, be stored?
This product is a powder and should be stored at 2-8°C, dessicated.
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What is the solution stablity of Product H7250, Histamine dihydrochloride?
Solutions can be stored at 2-4°C for 8 weeks, and at -20°C for up to 12 months. Once thawed, solutions should be used within 6 hours or discarded. Solutions are light sensitive and need to be protected from light.
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What is the Department of Transportation shipping information for this product?
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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