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
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33428
4,4′-MDI
analytical standard
Synonym(e):
4,4′-Methylen-bis(phenylisocyanat), 4,4′-MDI, Bis-(4-isocyanatophenyl)-methan
Größe auswählen
| Packungsgröße | SKU | Verfügbarkeit | Preis |
|---|---|---|---|
| 100 mg | Warenkorb auf Verfügbarkeit prüfen | € 82,40 |
Über diesen Artikel
grade
analytical standard
Quality Segment
shelf life
limited shelf life, expiry date on the label
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
bp
200 °C/5 mmHg (lit.)
mp
42-45 °C (lit.)
density
1.18 g/mL at 25 °C (lit.)
application(s)
environmental
format
neat
storage temp.
−20°C
SMILES string
O=C=Nc1ccc(Cc2ccc(cc2)N=C=O)cc1
InChI
1S/C15H10N2O2/c18-10-16-14-5-1-12(2-6-14)9-13-3-7-15(8-4-13)17-11-19/h1-8H,9H2
InChI key
UPMLOUAZCHDJJD-UHFFFAOYSA-N
General description
Application
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| application(s) environmental | application(s) environmental | application(s) cleaning products | application(s) environmental |
| technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable |
| format neat | format neat | format neat | format neat |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| grade analytical standard | grade analytical standard | grade analytical standard | grade analytical standard |
| storage temp. −20°C | storage temp. - | storage temp. 2-8°C | storage temp. - |
signalword
Danger
Hazard Classifications
Acute Tox. 4 Inhalation - Carc. 2 - Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation - STOT SE 3
target_organs
Respiratory system
Lagerklasse
11 - Combustible Solids
wgk
WGK 1
flash_point_f
411.8 °F - closed cup
flash_point_c
211 °C - closed cup
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Zulassungslistungen
Zulassungslistungen werden hauptsächlich für chemische Produkte erstellt. Für nicht-chemische Produkte können hier nur begrenzte Angaben gemacht werden. Kein Eintrag bedeutet, dass keine der Komponenten gelistet ist. Es liegt in der Verantwortung des Benutzers, die sichere und legale Verwendung des Produkts zu gewährleisten.
101-68-8
Hier finden Sie alle aktuellen Versionen:
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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 33428-100MG-R | 04061826737941 |
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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
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