CAS number： 94-13-3
Molecular formula： C10H12O3
molecular weight： 180.2005
Chemical structure：
Certificate of Analysis
| Product Name | Propyl Paraben | |
| Expiry Date | 3 years | |
| Inspection Standard | BP2009 | |
| Item | Specification | Result |
| Appearance | White or almost white, crystalline powder | Passed |
| Solubility | Very slightly soluble in water, freely soluble in alcohol and in methanol | Passed |
| Identification 1st Identification-A,B 2nd Identification-A,C,D | Shall comply with the BP requirement | Passed |
| Appearance of solution | Shall comply with the BP requirement | Passed |
| Acidity | Shall comply with the BP requirement | Passed |
| Related substances by TLC,% | Any impurity=0.5 max | 0.08 |
| Sulphated ash% | 0.1Max | 0.05 |
| Assay, % | 98.0 ~ 102.0% | 99.30% |
| Residual solvents | Shall comply with the BP requirement | Passed |
| Mocrobiological Contamination/g | A) Total aerobic microbial count ≤1000cfu | ≤1000 |
| B) Total conbined mould & yeasts ≤100cfu | ≤100 | |
| C) Other specific micro organisms (E>Coli, Salmonella sp) Absent in 1g | not detected | |
