As of February 28th, 2023, NLM will discontinue the Wireless Information System for Emergency Responders (WISER), the website (https://wiser.nlm.nih.gov) and WebWISER (https://webwiser.nlm.nih.gov), and the standalone applications for Windows PCs, iOS app, and Android app.
Other sources of Hazmat or Chemical, Biological, Radiological, Nuclear (CBRN) information are available with the following resources:
- CHEMM (Chemical Hazards Emergency Medical Management) - HHS ASPR
- REMM (Radiation Emergency Medical Management) - HHS ASPR
- ERG2020 (Emergency Response Guidebook) - USDOT/PHMSA [search for ERG2020 in the App Stores]
- CAMEO Chemicals - NOAA/EPA
- NIOSH Pocket Guide to Chemical Hazards - CDC/NIOSH [search for NIOSH Mobile Pocket Guide in the App Stores]
- Agency for Toxic Substances and Disease Registry (ATSDR) website - CDC/ATSDR
- DHS's Hazardous Materials Release website - DHS
- PubChem - NIH/NLM
- The National Library of Medicine Data Distribution (data files for HSDB, ChemIDplus, etc.) - NIH/NLM
If you have questions or suggestions, please contact NLM Customer Service (https://support.nlm.nih.gov/support/create-case).
Skip Data Menu
|
Pseudoephedrine
CAS RN:
90-82-4
Other PropertiesFine, white to off-white crystals or powder; faint characteristic odor; mp: 182-185 deg C; soln are neutral to litmus /hcl/ Occurs as dl, d & l isomers Needles, mp 182.5-183.5 deg C. Specific optical rotation: +62.05 at 20 deg C/D. UV max (ethanol): 208, 251, 257, 264 nm (epsilon 8300, 161, 201, 161). pKa: 9.22. Solubility at 25 deg C,(g/mL): water 2.0; chloroform 0.011; ethanol 0.278. Partition coefficient (25 deg C): 0.010 (n-octanol/water, pH 1.2); 0.049 (n-octanol/water, pH 6.0). /Hydrochloride/ Henry's Law constant = 8.65X10-11 atm-cu m/mol at 25 deg C (est) Hydroxyl radical reaction rate constant = 9.97X10-11 cu cm/molec-sec at 25 deg C (est)
|