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Pregabalin Impurity 5 $125.00 – $250.00
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Pregabalin Impurity 3/ 4 ene impurity/ pregabalin 4 ene impurity Request a Quote

Pregabalin EP Impurity B

$312.00 – $625.00

Cat. No: IS2-1112

CAS Number:   148553-51-9

Product Details:  Molecular Formula : C8H17NO2; MW : 159.23

IUPAC:  (3R)-3-(aminomethyl)-5-methylhexanoic acid

Synonyms:  (R)-Pregabalin; 148553-51-9; (3R)-3-(aminomethyl)-5-methylhexanoic acid; (R)-3-(Aminomethyl)-5-methylhexanoic acid; UNII-81R7ZIHBG; 81R7ZIHBG

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Cat. No: IS2-1112

CAS Number:   148553-51-9

Product Details:  Molecular Formula : C8H17NO2; MW : 159.23

IUPAC:  (3R)-3-(aminomethyl)-5-methylhexanoic acid

Synonyms:  (R)-Pregabalin; 148553-51-9; (3R)-3-(aminomethyl)-5-methylhexanoic acid; (R)-3-(Aminomethyl)-5-methylhexanoic acid; UNII-81R7ZIHBG; 81R7ZIHBG

Stock Status:  Ready Stock

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Pramipexole EP Impurity E

$250.00 – $500.00

Cat. No: IS2-379

CAS Number:   106006-84-2

Product Details:  Molecular Formula : C1H15N3OS; MW : 225.31

IUPAC:  N-[(6S)-2-amino-4,5,6,7-tetrahydro-1,3-benzothiazol-6-yl]propanamide

Synonyms:  166-84-2; Pramipexole propionamide; (S)-N-(2-amino-4,5,6,7-tetrahydrobenzo[d]thiazol-6-yl)propionamide; (6s)-2-amino-6-propionamidotetrahydrobenzothiazole; (S)-N-(2-Amino-4,5,6,7-tetrahydro-benzothiazol-6-yl)-propionamide; (-)-2-Amino-6-propionamido-tetrahydrobenzothiazole

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Azithromycin Impurity J

$208.00 – $416.00

Cat. No: IS2-382

CAS Number:   117693-41-1

Product Details:  Molecular Formula : C3H58N2O9; MW : 59.8

IUPAC:  (2R,3S,4R,5R,8R,1R,11R,12S,13S,14R)-11-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-2-ethyl-3,4,1,13-tetrahydroxy-3,5,6,8,1,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one

Synonyms:  Desosaminylazithromycin; 117693-41-1; UNII-E473HW9T7; E473HW9T7; Azithromycin Impurity J; Descladinose Azithromycin

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2-Butyl Valeric Acid

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Cat. No: IS2-389

CAS Number:   3274-28-0

Product Details:  Molecular Formula : C9H18O2; MW : 158.24

IUPAC:  2-propylhexanoic acid

Synonyms:  2-Propylhexanoic acid; 3274-28-; HEXANOIC ACID, 2-PROPYL-; 4-Octanecarboxylic acid; Propylbutylacetic acid; 2-Propyl-2-butylacetic acid

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Cetirizine Ethyl Ester

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Cat. No: IS2-397

CAS Number:   246870-46-2

Product Details:  Molecular Formula : C23H29ClN2O3; MW : 416.9

IUPAC:  ethyl 2-[2-[4-[(4-chlorophenyl)-phenylmethyl]piperazin-1-yl]ethoxy]acetate

Synonyms:  Cetirizine Ethyl Ester; 24687-46-2; Cetirizine Ethyl Ester (USP RC A); Ethyl 2-[2-[4-[(4-chlorophenyl)-phenylmethyl]piperazin-1-yl]ethoxy]acetate; Acetic acid, 2-(2-(4-((4-chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)-, ethyl ester; Acetic acid, 2-[2-[4-[(4-chlorophenyl)phenylmethyl]-1-piperazinyl]ethoxy]-, ethyl ester

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Pramipexole Di-Amide

$250.00 – $500.00

Cat. No: IS2-376

CAS Number:   1346617-47-7

Product Details:  Molecular Formula : C13H19N3O2S; MW : 281.38

IUPAC:  N-[(6S)-2-(propanoylamino)-4,5,6,7-tetrahydro-1,3-benzothiazol-6-yl]propanamide

Synonyms:  1346617-47-7; (S)-4,5,6,7-Tetrahydro-N2,N6-propionyl-2,6-benzothiazolediamine; N-[(6S)-2-(propanoylamino)-4,5,6,7-tetrahydro-1,3-benzothiazol-6-yl]propanamide; (S)-N,N'-(4,5,6,7-tetrahydrobenzo[d]thiazole-2,6-diyl)dipropionamide; Propanamide, N,N'-((6S)-4,5,6,7-tetrahydro-2,6-benzothiazolediyl)bis-; Propanamide, N,N'-[(6S)-4,5,6,7-tetrahydro-2,6-benzothiazolediyl]bis-

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Cetrizine Ep impurity C

$187.00 – $375.00

Cat. No: IS2-399

CAS Number:   83881-59-8

Product Details:  Molecular Formula : C21H25ClN2O3; MW : 388.9

IUPAC:  2-[2-[4-[(2-chlorophenyl)-phenylmethyl]piperazin-1-yl]ethoxy]acetic acid

Synonyms:  Cetirizine impurity C; 2-Chlorocetirizine; 83881-59-8; 2-[2-[4-[(2-chlorophenyl)-phenylmethyl]piperazin-1-yl]ethoxy]acetic acid; (RS)-2-[2-[4-[(2-Chloro-phenyl)phenylMethyl]piperazin-1-yl]ethoxy]aceticAcidDihydrochloride; Cetirizine 2-Chloro Impurity Dihydrochloride

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Valproic Acid EP Impurity K

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Cat. No: IS2-386

CAS Number:   5343-52-2

Product Details:  Molecular Formula : C8H16O2; MW : 144.21

IUPAC:  2-ethyl-2-methylpentanoic acid

Synonyms:  2-Ethyl-2-methylpentanoic acid; 5343-52-2; 2-ethyl-2-methyl valeric ccid; Pentanoic acid, 2-ethyl-2-methyl-; poly(2-propylacrylic acid); 2-ethyl-2-methyl-pentanoic acid

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Valproic Acid EP Impurity A

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Cat. No: IS2-392

CAS Number:   109-52-4

Product Details:  Molecular Formula : C5H1O2; MW : 12.13

IUPAC:  pentanoic acid

Synonyms:  Valeric acid; PENTANOIC ACID; n-Valeric acid; 19-52-4; n-Pentanoic acid; Valerianic acid

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