| Bioactivity | Direct red 31 is a good dyeing agent for cotton fabrics. |
| CAS | 5001-72-9 |
| Formula | C32H21N5Na2O8S2 |
| Molar Mass | 713.65 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | Please store the product under the recommended conditions in the Certificate of Analysis. |
| Reference | [1]. Sawada K, Ueda M. Adsorption behavior of direct dye on cotton in non-aqueous media[J]. Dyes and pigments, 2003, 58(1): 37-40. |