China (Mainland)
Clemastine fumarate CAS NO.14976-57-9
- Min.Order: 1 Gram
- Payment Terms: L/C,T/T,
- Product Details
Keywords
- Clemastine fumarate
- Clemastine
- USP40 Clemastine fumarate
Quick Details
- ProName: Clemastine fumarate
- CasNo: 14976-57-9
- Molecular Formula: C21H26ClNO.C4H4O4
- Appearance: White to off-white crystalline powder
- Application: Antihistamines API
- DeliveryTime: 15 Days
- PackAge: 1Kg/Bag
- Port: Qingdao
- ProductionCapacity: 100 Kiloliter/Month
- Purity: 99.0%
- LimitNum: 1 Gram
Superiority
Appearance: White or off-white crystalline powder
Solubility: Slightly soluble in methanol, very slightly soluble in water
Clarity and color of solution: The test solution is colorless or not more intensely colored than color matching fluid
Identification IR: IR spectrum of the sample corresponds to that of reference standard
TLC: Should be positive
HPLC: The retention time of the major peak in chromatograms corresponds to that in the reference standard
Specific rotation [α]D20: +15.0°～ +18.0°(C=1, in methanol)
pH: 3.2 ～ 4.2
Related substances:
4-Chlorobenzophenone
Individual impurity≤0.1%
Total impurities≤1.0%
Loss on drying: ≤0.5%
Heavy metals: ≤20ppm
Assay: 98.0% ～ 102.0%
Details
Appearance: White or off-white crystalline powder
Solubility: Slightly soluble in methanol, very slightly soluble in water
Clarity and color of solution: The test solution is colorless or not more intensely colored than color matching fluid
Identification IR: IR spectrum of the sample corresponds to that of reference standard
TLC: Should be positive
HPLC: The retention time of the major peak in chromatograms corresponds to that in the reference standard
Specific rotation [α]D20: +15.0°～ +18.0°(C=1, in methanol)
pH: 3.2 ～ 4.2
Related substances:
4-Chlorobenzophenone
Individual impurity≤0.1%
Total impurities≤1.0%
Loss on drying: ≤0.5%
Heavy metals: ≤20ppm
Assay: 98.0% ～ 102.0%