Hexatonic Scales
B♭+ over C (major triad over augmented triad a whole step apart).
C           E        G        B♭          D           F♯
1           3        5        ♭7          9           ♯11

Parent scale is G melodic minor (no 2).
G        B♭    C     D     E     F♯ 
1        ♭3    4     5     6     7    

Related chords.
| GmMaj7 | Am7 | B♭maj7♯5 | C9♯11 | D7♭13 | Em9♭5 | F♯m7♭5 F♯7♯5♭9 |
A shape
G F♯ E D C B♭ G F♯ E D C B♭ G F♯
G shape
C B♭ G F♯ E D C B♭ G F♯ E D C B♭
E shape
D C B♭ G F♯ E D C B♭ G F♯ E D C B♭
D shape
E D C B♭ G F♯ E D C B♭ G F♯ E D
C shape
G F♯ E D C B♭ G F♯ E D C B♭ G F♯ E
2 nps
F♯ E D C B♭ G F♯ E D C B♭ G
2 nps
G F♯ E D C B♭ G F♯ E D C B♭
2 nps
B♭ G F♯ E D C B♭ G F♯ E D C
2 nps
C B♭ G F♯ E D C B♭ G F♯ E D
2 nps
D C B♭ G F♯ E D C B♭ G F♯ E
2 nps
E D C B♭ G F♯ E D C B♭ G F♯
3 nps
D C B♭ G F♯ E D C B♭ G F♯ E D C B♭ G F♯ E
3 nps
G F♯ E D C B♭ G F♯ E D C B♭ G F♯ E D C B♭