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
66770
Methylendiamin -dihydrochlorid
≥98.0% (AT)
Synonym(e):
Diaminomethan -dihydrochlorid
Größe auswählen
| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
10 g | Warenkorb auf Verfügbarkeit prüfen | € 273,00 |
Über diesen Artikel
Quality Segment
assay
≥98.0% (AT)
form
solid
functional group
amine
storage temp.
2-8°C
SMILES string
Cl.Cl.NCN
InChI
1S/CH6N2.2ClH/c2-1-3;;/h1-3H2;2*1H
InChI key
QCYJCJJCNRIMNG-UHFFFAOYSA-N
General description
Application
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| description ≥98.0% (AT) | description ≥99.0% (AT) | description purum, ≥98.0% (AT) | description ≥99.0% (AT) |
| assay ≥98.0% (AT) | assay ≥99.0% (AT) | assay ≥98.0% (AT) | assay ≥99.0% (AT) |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| form solid | form powder | form - | form powder |
| storage temp. 2-8°C | storage temp. - | storage temp. - | storage temp. - |
| functional group amine | functional group - | functional group amine | functional group amine |
Lagerklasse
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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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
Helpful?
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I am curious about where HCl is located and how it is bonded in the molecule.
1 answer-
Both of the amino groups of the Methylenediamine are protonated (that is, as -NH3+ groups), with a chloride (Cl-) counterion associated with each of them. That is, it is best to think of the HCl as being dissociated, with H+ on the amine and Cl- as the counterion.
Helpful?
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