| Formula | C2H2O4 |
| Molecular weight | 90.03 |
| Details: | oxalic acid |
| Total Number of Peaks | 80 |
| Record | Massbank Spectrum MSBNK-RIKEN-PR010022 |
| Link | 971 |
| Base Peak | 73 |
| 2nd most intense Peak | 147 |
| 3rd most intense Peak | 77 |
| Formula | C2H2O4 |
| Molecular weight | 90.03 |
| Details: | oxalic acid |
| Total Number of Peaks | 48 |
| Record | Massbank Spectrum MSBNK-Kazusa-KZ000258 |
| Link | 971 |
| Base Peak | 147 |
| 2nd most intense Peak | 148 |
| 3rd most intense Peak | 149 |
| Formula | C2H2O4 |
| Molecular weight | 90.03 |
| Details: | oxalic acid |
| Total Number of Peaks | 42 |
| Record | Massbank Spectrum MSBNK-Osaka_Univ-OUF00407 |
| Link | 971 |
| Base Peak | 147 |
| 2nd most intense Peak | 148 |
| 3rd most intense Peak | 149 |
| Formula | C2H2O4 |
| Molecular weight | 90.03 |
| Details: | oxalic acid |
| Total Number of Peaks | 9 |
| Record | Massbank Spectrum MSBNK-Fac_Eng_Univ_Tokyo-JP003891 |
| Link | 971 |
| Base Peak | 44 |
| 2nd most intense Peak | 17 |
| 3rd most intense Peak | 28 |
| Formula | C2H2O4 |
| Molecular weight | 90.03 |
| Details: | oxalic acid |
| Total Number of Peaks | 3 |
| Record | Massbank Spectrum MSBNK-RIKEN_ReSpect-PS007701 |
| Link | 971 |
| Base Peak | 69 |
| 2nd most intense Peak | 68 |
| 3rd most intense Peak | 89 |