Xi'an Sengmei Biological Technology Co., Ltd
Business Type:Manufacturer
Country/Region:China
Ddu Verified
HOT Rank
Xi'an Sengmei Biological Technology Co., Ltd
We are professional supplier of animal and plant extracts.
Xi'an Sengmei Biological Technology Co., Ltd
We are professional supplier of animal and plant extracts.
Business Type:Manufacturer
Country/Region:China
Ddu Verified
HOT Rank
Description
Name: Metformin hcl
Synonyms: 1,1-Dimethylbiguanide hydrochloride, Metformin hydrochloride
Molecular Formula: C4H11N5.HCl
Molecular Weight: 165.62
CAS: 1115-70-4 (15537-72-1)
Melting point: 223-226 ºC
Standard: USP34
Quality analysis
| Item | Specifications (USP) | Specifications (AJI) |
| Description | White crystals or crystalline powder | White crystals or crystalline powder |
| Identification | Infrared absorption spectrum | Infrared absorption spectrum |
| Specific rotation [a]D20° | +26.3 °- +27.7° | +26.9 °- +27.9° |
| State of solution /Transmittance | --- | ≥ 98.0% |
| Chloride (Cl) | ≤ 0.05% | ≤ 0.020% |
| Ammonium (NH4) | --- | ≤ 0.02% |
| Sulfate (SO4) | ≤ 0.03% | ≤ 0.020% |
| Iron (Fe) | ≤ 0.003% | ≤ 10PPm |
| Heavy metals (Pb) | ≤ 0.0015% | ≤ 10PPm |
| Arsenic (As2O3) | --- | ≤ 1PPm |
| Other amino acids | --- | Chromatographically not detectable |
| Loss on drying | ≤ 0.5% | ≤ 0.5% |
| Residue on ignition (sulfated) | ≤ 0.3% | ≤ 0.10% |
| Assay | 98.5-101.5% | 99.0 - 101.0% |
| PH | --- | 10.5-12.0 |
| Organic volatile impurities | Meets the requirements | --- |
Pterostilbene is a stilbenoid chemically related to resveratrol. In plants, it serves a defensive phytoalexin role. The possible biological effects of pterostilbene are being examined in basic research involving laboratory models of several disorders, including age-related cognitive decline.