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/449/386/product-dating-information-mk.pdf
398160
Hexamethylenetetramine
ACS reagent, ≥99.0%
Synonym(s):
1,3,5,7-Tetraazatricyclo[3.3.1.13,7]decane, Hexamine, Methenamine, Urotropine
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About This Item
Recommended Products
grade
ACS reagent
Quality Level
vapor pressure
<0.01 mmHg ( 20 °C)
assay
≥99.0%
form
solid
autoignition temp.
770 °F
ign. residue
≤0.1%
loss
≤2.0% loss on drying
mp
280 °C (subl.) (lit.)
solubility
water: soluble
cation traces
heavy metals: ≤0.001% (by ICP)
SMILES string
C1N2CN3CN1CN(C2)C3
InChI
1S/C6H12N4/c1-7-2-9-4-8(1)5-10(3-7)6-9/h1-6H2
InChI key
VKYKSIONXSXAKP-UHFFFAOYSA-N
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General description
Application
- Raw material in the synthesis of blue emitting boron carbon oxynitride (BCNO) phosphors[3] and Zinc oxide (ZnO) nanorods.[4]
- Catalyst in the synthesis of 2-amino-4H-pyran derivatives.[1]
- Surfactant in the synthesis of HMTA capped transition metals doped ZnS nanoparticles.[5]
- Precipitant and template in the synthesis of Ni(OH)2.[6]
Other Notes
Legal Information
signalword
Warning
hcodes
Hazard Classifications
Flam. Sol. 2 - Skin Sens. 1B
Storage Class
4.1B - Flammable solid hazardous materials
wgk_germany
WGK 1
flash_point_f
482.0 °F - closed cup
flash_point_c
250 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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