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Chemical materials

Rifabutin Impurity 3

ULR3311 /
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25-O-desacetyl-23-Acetyl-Rifabutin (Possibly a mixture with API)

ULR332 /
CAS No.：1242076-43-2
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Rifabutin EP Impurity E

ULR333 /
CAS No.：100324-63-8
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Rifabutin EP Impurity E-d7

ULR334 /
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Rifabutin

ULR335 /
CAS No.：72559-06-9
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Rifabutin EP Impurity B (3-Amino Rifamycin S)

ULR336 /
CAS No.：51756-80-0
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Rifabutin EP Impurity C (21,31-Didehydro Rifabutin)

ULR337 /
CAS No.：2241829-23-0
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Rifabutin EP Impurity D (3-Amino-4-Imido Rifamycin S)

ULR338 /
CAS No.：62041-01-4
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Rifabutin Impurity 1 (14-epi-Rifabutin)

ULR339 /
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Rilpivirine-d6 HCl

ULR341 /
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Rilpivirine

ULR3410 /
CAS No.：500287-72-9
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Rilpivirine Impurity 1

ULR3411 /
CAS No.：1629023-90-0
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Rilpivirine Desmethyl Impurity

ULR3412 /
CAS No.：500292-48-8
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Rilpivirine Impurity 2 (Mixture of Z and E Isomers)

ULR3413 /
CAS No.：2574567-24-9
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Rilpivirine Impurity 3

ULR3414 /
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Rilpivirine Impurity 4

ULR3415 /
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Rilpivirine Impurity 6

ULR3416 /
CAS No.：1009330-41-9
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Rilpivirine Impurity 7

ULR3417 /
CAS No.：661489-22-1
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N-Nitroso Rilpivirine

ULR3418 /
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Rilpivirine Impurity 8

ULR3419 /
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Rilpivirine N-Glucuronide

ULR342 /
CAS No.：143779-52-0
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Rilpivirine Impurity 9

ULR3420 /
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Rilpivirine (Z-Isomer)

ULR3421 /
CAS No.：500287-94-5
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Rilpivirine Chloro Impurity (4-[(4-Chloropyrimidin-2-yl)amino]-Benzonitrile)

ULR343 /
CAS No.：N/A
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Rilpivirine Nitrile Impurity ((2E)-3-(4-Amino-3, 5-Dimethylphenyl)prop-2-Enenitrile HCl)

ULR344 /
CAS No.：N/A
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Rilpivirine Keto Impurity (4-[(4-Oxo-1, 4-Dihydropyrimidin-2-yl)amino]-Benzonitrile)

ULR345 /
CAS No.：N/A
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Rilpivirine (Z-Isomer) HCl

ULR346 /
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Rilpivirine N-Oxide

ULR347 /
CAS No.：N/A
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Rilpivirine Amide

ULR348 /
CAS No.：500288-66-4
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Rilpivirine Impurity 5 (Mixture of Z and E Isomers)

ULR349 /
CAS No.：2280857-80-7
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Rifaximin-d6

ULR351 /
CAS No.：1262992-43-7
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Rifaximin EP Impurity G

ULR3510 /
CAS No.：80621-76-7
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Rifaximin EP Impurity B (Rifamycin B)

ULR3511 /
CAS No.：13929-35-6
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Rifaximin EP Impurity C (Rifamycin SV)

ULR3512 /
CAS No.：6998-60-3
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Rifaximin EP Impurity C Sodium Salt (Rifamycin SV Sodium Salt)

ULR3513 /
CAS No.：14897-39-3
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Rifaximin EP Impurity F (Rifamycin O)

ULR3514 /
CAS No.：14487-05-9
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Rifaximin EP Impurity E (Rifamycin S)

ULR3515 /
CAS No.：13553-79-2
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Rifaximin EP Impurity A

ULR3516 /
CAS No.：695-34-1
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Rifaximin Impurity 3

ULR3517 /
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Rifaximin

ULR352 /
CAS No.：80621-81-4
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Rifaximin EP Impurity D

ULR353 /
CAS No.：N/A
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Rifaximin Impurity H

ULR354 /
CAS No.：1210022-90-4
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25-Desacetyl Rifaximin

ULR355 /
CAS No.：80621-88-1
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25-Desacetyl Rifaximin-d6

ULR356 /
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Rifaximin Impurity 1

ULR357 /
CAS No.：1351775-04-6
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Rifaximin Impurity 2

ULR358 /
CAS No.：1351775-03-5
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Rifaximin Imine-N-Oxide

ULR359 /
CAS No.：51963-55-4
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Ritalinic Acid Lactam

ULR362 /
CAS No.：54593-31-6
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Ritalinic Acid Impurity 1 (Mixture of Diastereomers)

ULR365 /
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ULR366

ULR366 /
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Mail kaohsiung@echochemical.com
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