Phosphorous acid CAS NO.:13598-36-2 Phosphonic acid; hydrogen phosphonate;phosphorus(+3) trihydride cation trihydroxide
Read More| Name: | kojic acid | 
| Chemical name: | kojic acid | 
| CAS NO: | 501-30-4 | 
| MF: | C6H6O4 | 
| EINECS NO: | 207-922-4 | 
| Application: | to treat skin diseases | 
| Appearance: | white powder | 
| Formulation: | 99TC | 
| Melting point: | 152-155 °C(lit.) | 
| Molecular weight: | 142.11 | 
| HS Code: | 29329995 | 
| Country of orgin: | China(mainland) | 
| Province: | Yunnan | 
| Brand: | Litto | 
Appearance  | Almost white crystal or crystalline powder  | 
Eumycetes:  | 50cfu/g max  | 
Assay  | 99% min  | 
Melting Point  | 152 –156 ℃  | 
Loss on drying:  | 0.5% max  | 
Residue on ignition:  | 0.1% max  | 
Cl  | 0.005% max  | 
Heavy metals(Pb):  | 0.001% max  | 
Arsenic(As):  | 0.0001% max  | 
Iron:  | 0.001% max  | 
Bacteria:  | 3000cfu/g max  | 
Coliform group:  | Negative  |