Contact
Email me to order a design or decoration project, supervision, or ask general questions
Rhein/CAS:478-43-3
Synonyms:4,5-Dihydroxy anthraquinone-2-Carboxylic acid, chrysazin-3-carboxylicacid;monorhein;rheicacid;RHUBARB EXTRACT;RHUBARB YELLOW;RHEIN;TIMTEC-BB SBB001152;1,8-DIHYDROXY-9,10-ANTHRAQUINONE-3-CARBOXYLIC ACID
CAS NO.:478-43-3
EINECS No.:207-521-4
MF:C15H8O6
MW:284.22
Category: Pharmaceutical intermediates
Specification of Rhein:
| Item | Specifications |
| Appearance | Saffron yellow powder |
| Loss on drying | 0.5% max |
| Sulfated ash | 0.2% max |
| Related substances | Aloe emodin free and acetylated: 200ppm max |
| Any single unknown impurities: 0.4% max | |
| Total impurities: 1.5% max | |
| Assay | 98.0% to 102.0% |
| Residual solvents | Methanol: 3000ppm max |
| Toluene: 890ppm max | |
| Benzene: 2ppm max | |
| DMSO:5000ppm max | |
| DMF: 880ppm max |
Application
1.Pharmaceutical intermediates;
Health food raw materials
Package and Store:
25kg drum or on the clients’ requirements.
Stored in airtight place at low temperature, moistureproof, sunfast. Avoid being mixed with alkali substance or substance with oxidation susceptibility.
Related products:Loperamide hydrochloride/CAS:34552-83-5