| ITEM | STANDARD |
| Appearance | White crystalline Powder |
| Identification | Positive in No.1, 2, 3 Test |
| State of solution transmittance | Clear and colorless ot less then 98% |
| Loss on drying | =<1.0% |
| Heavy metals(Pb) | =<10ppm |
| Assay | 98.0~102.0% |
| Residue on ignition | =<0.2% |
| Other Related compounds of nucleic acid | Chromatographically not detectable |
| Arsenic(As2O3) | =<1ppm |
| PH | 4.8-5.8 |