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TLC Pharmaceutical Standards

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BRIMONIDINE

B-164

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Catalogue Number:	B-164
Compound Name:	Brimonidine EP Impurity A (Desbromo Brimonidine)
Synonyms:	N-(quinoxalin-6-yl)imidazolidin-2-imine
CAS#:	91147-43-2
Alternate CAS#:
Molecular Formula:	C₁₁H₁₁N₅
Molecular Weight:	213.24

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Brimonidine-d4

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C₁₁H₆D₄BrN₅

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B-165

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine D-Tartrate

CAS No. 1400635-36-0

C₁₁H₁₀BrN₅. C₄H₆O₆

M.W. 292.14 150.09

B-166

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 1 HCl

C₁₁H₁₀BrN₅O₂. HCl

M.W. 324.14 36.46

B-167

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Tartrate Impurity 2

CAS No. N/A

C10H8BrN3S

M.W. 282.16

B-168

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Tartrate Impurity 3

C₁₃H₁₄N₄

M.W. 226.28

B-169

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine EP Impurity C (6-Aminoquinoxaline)

CAS No. 6298-37-9

C₈H₇N₃

M.W. 145.17

B-1610

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine EP Impurity B (Brimonidine USP Related Compound A)

CAS No. 50358-63-9

C₈H₆BrN₃

M.W. 224.06

B-1611

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine EP Impurity G HCl

C₁₁H₁₂BrN₅O. HCl

M.W. 310.15 36.46

B-1612

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine EP Impurity F

CAS No. 151110-15-5

C₁₁H₈BrN₅

M.W. 290.12

B-1613

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Related Impurity 3

CAS No. 135306-56-8

C9H5N3S

M.W. 187.22

B-1615

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine EP Impurity E

CAS No. 168329-48-4

C₉H₈BrN₅

M.W. 266.10

B-1616

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 5

CAS No. 91147-46-5

C₁₁H₁₀ClN₅

M.W. 247.69

B-1617

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Dimer

C₂₃H₂₀Br₂N₁₀

M.W. 596.29

B-1618

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Tartrate Impurity 4

CAS No. 182628-02-0

C9H5BrN4

M.W. 249.07

B-1619

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Tartrate Impurity 6

C15H12BrN5O4

M.W. 406.20

B-1620

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Tartrate Impurity 7

C15H12BrN5O3

M.W. 390.20

B-1621

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 6 Sodium Salt

C₁₄H₁₃BrN₅O₂. Na

M.W. 363.20 22.99

B-1622

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 7

C₂₂H₁₈Br₂N₁₀

M.W. 580.01

B-1623

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 2

C₁₄H₁₃BrN₆O₄

M.W. 409.20

B-1624

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 8

CAS No. 40254-90-8

C₉H₇N₅

M.W. 185.19

B-1625

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 9

C₁₅H₁₄BrN₅O₄

M.W. 408.21

B-1626

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Tartrate Impurity 8

CAS No. 934548-66-0

C₁₅H₁₂BrN₅O₃

M.W. 390.20

B-1627

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 10

C₁₂H₁₂BrN₃OS

M.W. 326.21

B-1628

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 11

C₁₅H₁₂BrN₅O₃

M.W. 390.20

B-1629

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 12

C₁₁H₉N₅

M.W. 211.23

B-1630

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 13

CAS No. 134892-42-5

C₁₁H₁₄BrN₅

M.W. 296.17

B-1631

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 14

C₂₃H₂₈Br₂N₁₀

M.W. 604.36

B-1632

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Tartrate Impurity 9

C₁₅H₁₂BrN₅O₃

M.W. 390.20

B-1633

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

N1-Nitroso Brimonidine

C₁₁H₉BrN₆O

M.W. 321.14

B-1634

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

N2-Nitroso Brimonidine

C₁₁H₉BrN₆O

M.W. 321.14

B-1635

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

N1,N2-Dinitroso Brimonidine

C₁₁H₈BrN₇O₂

M.W. 350.14

B-1636

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 15

C₁₅H₁₂BrN₅O₃

M.W. 390.20

B-1637

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 16 Disodium Salt

C₁₅H₁₂BrN₅O₄. 2 Na

M.W. 406.20 2*22.99

B-1638

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 17

C₁₃H₁₀BrN₅O₂

M.W. 348.16

B-1639

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 16

C₁₅H₁₄BrN₅O₄

M.W. 408.21

B-1640

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 19

CAS No. 185312-10-1

C₁₁H₉N₅

M.W. 211.23

B-1641

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 20

CAS No. 2768536-86-1

C₁₂H₁₁BrN₆O

M.W. 335.17

B-1642

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 21

CAS No. 2768536-87-2

C₁₂H₁₃BrN₆O₂

M.W. 353.18

B-1643

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 22

C₁₁H₁₂BrN₅O

M.W. 310.16

B-1644

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 23

C₁₆H₁₇BrN₆O

M.W. 389.26

B-1645

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 24

C₁₁H₁₀BrN₅

M.W. 292.14

B-1646

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 25

CAS No. 1158184-23-6

C₁₃H₁₂BrN₅O

M.W. 334.18

B-1647

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

N-Nitroso Brimonidine EP Impurity F

C₁₁H₇BrN₆O

M.W. 319.12

B-1648

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 26

C₁₅H₁₂BrN₅O₃

M.W. 390.20

B-1649

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

N-Nitroso Brimonidine Impurity 26

C₁₅H₁₁BrN₆O₄

M.W. 419.20

B-1650

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine L-Tartrate

CAS No. 70359-46-5

C₁₁H₁₀BrN₅. C₄H₆O₆

M.W. 292.14 150.09

B-1651

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 27

C₁₁H₁₂BrN₅O

M.W. 310.16

B-1652

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 28

C₁₆H₁₀Br₂N₆

M.W. 446.11

B-1653

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 29

C₁₅H₁₂BrN₅O₃

M.W. 390.20

B-1654

Brimonidine EP Impurity D (Brimonidine USP Related Compound B)

Brimonidine Impurity 30

C₁₁H₉N₅

M.W. 211.23