1. There are two benzene rings. Call the first "Ring A" and the second "Ring B."
2. Ring A (a six-membered benzene ring, labeled C1 to C6):
   - C1 is the point of attachment to the rest of the molecule.
   - C3 bears a methyl substituent (CH3).
   - No other substituents are present on this ring.
3. At C1 of Ring A, there is a single bond to an sp2-hybridized carbon (C7). C7 is:
   - Double-bonded to a nitrogen (N1).
   - Single-bonded to a hydroxyl group (OH).
   - Single-bonded to Ring A via C1.
4. N-1 is single-bonded to an sp3 carbon (C8), which has:
   - A methyl substituent (CH3).
   - A bond to N1.
   - A bond to the next substituent (see step 5).
5. The substituent on C8 is another sp2-hybridized carbon (C9), which is:
   - Double-bonded to a nitrogen (N2).
   - Single-bonded to a hydroxyl group (OH).
6. N2 is single-bonded to a methylene group (C10), which connects to Ring B.
7. Ring B (six-membered benzene ring, labeled C1' to C6'):
   - C1' is the point where C10 attaches.
   - C3' bears a sulfonamide group (SO2-NH2).
   - No other substituents are present on this ring.
No stereochemical descriptors are required (no chiral centers or E/Z geometry). This fully defines the molecule.
