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
D44804
α,α′-Dibromo-p-xylene
97%
Synonym(s):
1,4-Bis(bromomethyl)benzene, p-Xylylene dibromide
Select a Size
| Pack Size | SKU | Availability | Price |
|---|
About This Item
Quality Segment
assay
97%
form
crystals
bp
245 °C (lit.)
mp
143-145 °C (lit.)
SMILES string
BrCc1ccc(CBr)cc1
InChI
1S/C8H8Br2/c9-5-7-1-2-8(6-10)4-3-7/h1-4H,5-6H2
InChI key
RBZMSGOBSOCYHR-UHFFFAOYSA-N
General description
Application
- Phthalazinone derivatives, which are reported as potent inhibitors of phosphodiesterase 4.
- N-Phenylated polyamine via polycondensation reaction with aniline and α, α′-dianilino-p-xylene.
- Porous polymeric network (PPN) via a Friedel-Crafts alkylation reaction with triphenylamine using FeCl3 as an oxidizing agent.
1 of 1
This Item | |||
|---|---|---|---|
| assay 97% | assay 97% | assay ≥98.0% (GC) | assay 95% |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| mp 143-145 °C (lit.) | mp 114-116 °C (lit.) | mp 143-145 °C (lit.) | mp - |
| bp 245 °C (lit.) | bp - | bp 245 °C (lit.) | bp - |
| form crystals | form - | form crystals | form - |
Still not finding the right product?
Explore all of our products under α,α′-Dibromo-p-xylene
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Choose from one of the most recent versions:
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Related Content
Global Trade Item Number
| SKU | GTIN |
|---|---|
| D44804-100G | 04061833553442 |
| D44804-5G | 04061833553466 |
| D44804-25G | 04061833564448 |
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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?
-