| Chemical Name | Disodium 7-(benzoylamino)-4-hydroxy-3-[(E)-{4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}diazenyl]naphthalene-2-sulfonate |
| C.I. No. | 28160 |
| CAS No. | 2610-11-9 |
| Structure | ![Disodium 7-(benzoylamino)-4-hydroxy-3-[(E)-{4-[(E)-(4-sulfonatophenyl)diazenyl]phenyl}diazenyl]naphthalene-2-sulfonate](https://sp-ao.shortpixel.ai/client/to_webp,q_glossy,ret_img,w_126,h_75/https://dyeschemical.com/dyesadmin/uploads/structure/Direct-Red-81.gif) |
| Specification | Molecular Formula : C29H19N5Na2O8S2 |
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