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
M7635
Alkyltrimethylammonium bromide
≥95% (TLC)
Synonym(s):
Cetrimide (per BP)
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SMILES string
[Br-].CCCCCCCCCCCCCC[N+](C)(C)C
InChI
1S/C17H38N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18(2,3)4;/h5-17H2,1-4H3;1H/q+1;/p-1
InChI key
CXRFDZFCGOPDTD-UHFFFAOYSA-M
biological source
synthetic
description
cationic
assay
≥95% (TLC)
form
powder
mol wt
336.41 g/mol
mp
245-250 °C
solubility
H2O: 5 % (w/v)
density
1 g/cm3 at 25 °C
Quality Level
Related Categories
1 of 4
This Item | 87580 | D5047 | T4762 |
|---|---|---|---|
| assay ≥95% (TLC) | assay ≥99.0% (AT) | assay ~99% | assay ≥99% |
| form powder | form powder | form crystals | form - |
| description cationic | description - | description cationic | description cationic |
| Quality Level 200 | Quality Level 100 | Quality Level 200 | Quality Level 200 |
| solubility H2O: 5 % (w/v) | solubility - | solubility H2O: 0.1 M at 20 °C, clear, colorless | solubility H2O: 10 % (w/v) |
General description
Application
Other Notes
signalword
Danger
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2 - STOT RE 2 Oral - STOT SE 3
target_organs
Gastrointestinal tract, Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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I am performing an analysis stating the use of Catrimide R is necessary but that according to the European Pharmacopoeia is Cetrimide CASnr 8044-71-1. Is this interchangeable with the CASnr 1119-97-7?
1 answer-
CAS number 8044-71-1 refers to a mixture of alkyltrimethylammonium bromides. It is not a specific compound but rather a blend of similar quaternary ammonium compounds. CAS number 1119-97-7 refers to trimethyltetradecylammonium bromide. So these two CAS numbers refer to different compounds and are not interchangeable.
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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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CAS no.を教えて下さい
1 answer-
The CAS number for Product M7635 is 8044-71-1.
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