Isopentanol is an alcohol used in chemical synthesis and as a solvent.CAS Number: 123-51-3 EC Number: 204-618-4

| **Test Item**                    | **Specification** | **Measured Result** |
|----------------------------------|--------------------|----------------------|
| Content (%)                      | ≥98.5              | 99.2                 |
| Appearance                       | Colorless transparent liquid | Colorless transparent liquid |
| Residue on Evaporation (%)       | ≤0.002             | 0.0009               |
| Acid and Ester (as Pentyl Acetate) (%) | ≤0.06        | 0.04                 |
| Carbonizable Substances          | Pass               | Pass                 |
| Carbonyl Compounds (as CO) (%)   | ≤0.1               | <0.1                 |
| Iron (Fe) (%)                    | ≤0.00003           | <0.00003             |
| Water Content (H₂O) (%)          | ≤0.2               | 0.08                 |
| Boiling Point (℃)                | 130±1              | 130.5                |
| Acidity (as H⁺) mmol/100g         | ≤0.04              | 0.02                 |

**Analysis Conclusion:** Meets the requirements for analytical purity as per HG/T 2891-2011.

Product Name      | Methanol
Specifications    | Analytical grade
Batch Number      | 2023020601
Molecular Formula | CH3OH
Molecular Weight  | 32.04
Batch Size        | 33430kg
Testing Unit      | Production Department One
Sample Type       | Organic
Report Date       | 2023.02.08
Testing Standard  | GB/T 683-2006

| Test Item                | Standard Requirement | Test Result |
|--------------------------|----------------------|-------------|
| Content, %               | ≥99.5                | 99.9        |
| Appearance               | Colorless transparent liquid | Colorless transparent liquid |
| Density (20℃), (g/ml)    | 0.791-0.793          | 0.792       |
| Water Mixing Test        | Qualified             | Qualified   |
| Evaporation Residue, %   | ≤0.001               | 0.0004      |
| Moisture (H2O), %        | ≤0.1                 | 0.006       |
| Acidity (as H+), mmol/g  | ≤0.0004              | 0.0002      |
| Alkalinity (as OH-), mmol/g | ≤0.00008          | Not detected|
| Potassium permanganate reducing substances, % | ≤0.0005 | <0.0005  |

Analysis Conclusion:
Meets the requirements of GB/T 683-2006 for analytical purity.