Ursodeoxycholic Acid-impurities | Pharmaffiliates

ursodeoxycholic acid and its Impurities

Ursodeoxycholic acid. It works by reducing the amount of cholesterol released by your liver and by slowly dispersing the cholesterol.Reference standards of Ursodeoxycholic Acid API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 68 results for ursodeoxycholic acid Impurities
PA 21 04000

Ursodeoxycholic Acid - API Standards

Ursodeoxycholic Acid


  • Catalogue No.:PA 21 04000

  • CAS :

    128-13-2

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.57

PA 21 04010

Ursodeoxycholic Acid - Impurity A

Chenodeoxycholic Acid


  • Catalogue No.:PA 21 04010

  • CAS :

    474-25-9

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.57

PA 21 04020

Ursodeoxycholic Acid - Impurity B

Cholic Acid


  • Catalogue No.:PA 21 04020

  • CAS :

    81-25-4

  • Molecular Formula : C24H40O5

  • Molecular Weight : 408.57

PA 21 04030

Ursodeoxycholic Acid - Impurity C

Lithocholic Acid


  • Catalogue No.:PA 21 04030

  • CAS :

    434-13-9

  • Molecular Formula : C24H40O3

  • Molecular Weight : 376.57

PA 21 04040

Ursodeoxycholic Acid - Impurity D

Ursocholic Acid


  • Catalogue No.:PA 21 04040

  • CAS :

    2955-27-3

  • Molecular Formula : C24H40O5

  • Molecular Weight : 408.57

PA 21 04050

Ursodeoxycholic Acid - Impurity E

Deoxycholic Acid


  • Catalogue No.:PA 21 04050

  • CAS :

    83-44-3

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.57

PA 21 04060

Ursodeoxycholic Acid - Impurity F

Nutriacholic Acid


  • Catalogue No.:PA 21 04060

  • CAS :

    4651-67-6

  • Molecular Formula : C24H38O4

  • Molecular Weight : 390.56

PA 21 04090

Ursodeoxycholic Acid - Impurity I

5β-Cholane-3α,7β,24-triol


  • Catalogue No.:PA 21 04090

  • CAS :

    130593-75-8

  • Molecular Formula : C24H42O3

  • Molecular Weight : 378.59

PA 21 04510

24-Nor Ursodeoxycholic Acid

24-Nor Ursodeoxycholic Acid


  • Catalogue No.:PA 21 04510

  • CAS :

    99697-24-2

  • Molecular Formula : C23H38O4

  • Molecular Weight : 378.55

PA 21 04520

24-Nor Ursodeoxycholic Acid Methyl Ester

24-Nor Ursodeoxycholic Acid Methyl Ester


  • Catalogue No.:PA 21 04520

  • CAS :

    118316-16-8

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.57

PA 21 04530

24-Nor Ursodeoxycholic Acid Acyl-β-D-glucuronide

24-Nor Ursodeoxycholic Acid Acyl-β-D-glucuronide


  • Catalogue No.:PA 21 04530

  • CAS :

    NA

  • Molecular Formula : C29H46O10

  • Molecular Weight : 554.67

PA 21 04540

Ursodeoxycholic Acid - Impurity H

3β-Ursodeoxycholic Acid


  • Catalogue No.:PA 21 04540

  • CAS :

    78919-26-3

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.57

PA 21 04550

Ursodeoxycholic Acid Acyl-β-D-glucuronide

Ursodeoxycholic Acid Acyl-β-D-glucuronide


  • Catalogue No.:PA 21 04550

  • CAS :

    208038-28-2

  • Molecular Formula : C30H48O10

  • Molecular Weight : 568.7

PA 21 04560

Ursodeoxycholic Acid - Impurity G

Methyl 3α,7β-dihydroxy-5β-cholan-24-oate


  • Catalogue No.:PA 21 04560

  • CAS :

    10538-55-3

  • Molecular Formula : C25H42O4

  • Molecular Weight : 406.60

PA 21 04570

6(R)-Ethyl Ursodeoxycholic Acid

6(R)-Ethyl Ursodeoxycholic Acid


  • Catalogue No.:PA 21 04570

  • CAS :

    865244-30-0

  • Molecular Formula : C26H44O4

  • Molecular Weight : 420.63

PA 21 04580

6(S)-Ethyl Ursodeoxycholic Acid

6(S)-Ethyl Ursodeoxycholic Acid


  • Catalogue No.:PA 21 04580

  • CAS :

    NA

  • Molecular Formula : C26H44O4

  • Molecular Weight : 420.63

PA 21 04590

6-β-Ethyl Chenodeoxycholic Acid

6-β-Ethyl Chenodeoxycholic Acid


  • Catalogue No.:PA 21 04590

  • CAS :

    NA

  • Molecular Formula : C26H44O4

  • Molecular Weight : 420.63

PA 21 04600

6-Ethyl Chenodeoxycholic Acid Dimer

6-Ethyl Chenodeoxycholic Acid Dimer


  • Catalogue No.:PA 21 04600

  • CAS :

    NA

  • Molecular Formula : C51H84O7

  • Molecular Weight : 809.21

PA 21 04610

6-β-Ethyl-7-oxo-lithocholic Acid

6-β-Ethyl-7-oxo-lithocholic Acid


  • Catalogue No.:PA 21 04610

  • CAS :

    NA

  • Molecular Formula : C26H42O4

  • Molecular Weight : 418.61

PA 21 04620

Glycoursodeoxycholic Acid

Glycoursodeoxycholic Acid


  • Catalogue No.:PA 21 04620

  • CAS :

    64480-66-6

  • Molecular Formula : C26H43NO5

  • Molecular Weight : 449.62

PA 21 04630

Ursodoxicoltaurine - API Standards

Ursodoxicoltaurine


  • Catalogue No.:PA 21 04630

  • CAS :

    14605-22-2

  • Molecular Formula : C26H45NO6S

  • Molecular Weight : 499.7

PA STI 069370

24-Nor Ursodeoxycholic Acid-d5

24-Nor Ursodeoxycholic Acid-d5


  • Catalogue No.:PA STI 069370

  • CAS :

    NA

  • Molecular Formula : C23H33D5O4

  • Molecular Weight : 383.58

PA STI 069380

24-Nor Ursodeoxycholic Acid-d5 Methyl Ester

24-Nor Ursodeoxycholic Acid-d5 Methyl Ester


  • Catalogue No.:PA STI 069380

  • CAS :

    NA

  • Molecular Formula : C24H35D5O4

  • Molecular Weight : 397.60

PA STI 069390

24-Nor Ursodeoxycholic Acid-d5 (major) Acyl-β-D-glucuronide

24-Nor Ursodeoxycholic Acid-d5 (major) Acyl-β-D-glucuronide


  • Catalogue No.:PA STI 069390

  • CAS :

    NA

  • Molecular Formula : C29H41D5O10

  • Molecular Weight : 559.7

PA STI 069400

24-Nor Ursodeoxycholic Acid-d5 (major) Acyl-β-D-glucuronide Benzyl Ester

24-Nor Ursodeoxycholic Acid-d5 (major) Acyl-β-D-glucuronide Benzyl Ester


  • Catalogue No.:PA STI 069400

  • CAS :

    NA

  • Molecular Formula : C36H48D5O10

  • Molecular Weight : 650.83

PA STI 081090

Tauroursodeoxycholic-2,2,3,4,4-d5 Acid

Tauroursodeoxycholic-2,2,3,4,4-d5 Acid


  • Catalogue No.:PA STI 081090

  • CAS :

    1207294-25-4

  • Molecular Formula : C26H40D5NO6S

  • Molecular Weight : 504.73

PA STI 081091

Tauroursodeoxycholic Acid-d4

Tauroursodeoxycholic Acid-d4


  • Catalogue No.:PA STI 081091

  • CAS :

    NA

  • Molecular Formula : C26H41D4NO6S

  • Molecular Weight : 503.73

PA STI 086350

Ursodeoxycholic Acid-d5

Ursodeoxycholic Acid-d5


  • Catalogue No.:PA STI 086350

  • CAS :

    93701-18-9

  • Molecular Formula : C24H35D5O4

  • Molecular Weight : 397.60

PA STI 086351

Ursodeoxycholic Acid-d4

Ursodeoxycholic Acid-d4


  • Catalogue No.:PA STI 086351

  • CAS :

    347841-46-7

  • Molecular Formula : C24H36D4O4

  • Molecular Weight : 396.6

PA STI 086360

3β-Ursodeoxycholic Acid-d5

3β-Ursodeoxycholic Acid-d5


  • Catalogue No.:PA STI 086360

  • CAS :

    NA

  • Molecular Formula : C24H35D5O4

  • Molecular Weight : 397.6

PA STI 086370

Ursodeoxycholic Acid-d5 Methyl Ester

Ursodeoxycholic Acid-d5 Methyl Ester


  • Catalogue No.:PA STI 086370

  • CAS :

    93701-19-0

  • Molecular Formula : C25H37D5O4

  • Molecular Weight : 411.63

Ursodeoxycholic Acid (IPRS/101/13)-from IPC


  • Catalogue No.:PA IPIPRS 101 13

  • CAS :

    NA

  • Molecular Formula :

  • Molecular Weight : NA

Ursodeoxycholic acid (U0800000)

Ursodeoxycholic acid (U0800000)


  • Catalogue No.:PA EPU0800000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Ursodeoxycholic acid for system suitability (Y0001163)

Ursodeoxycholic acid for system suitability (Y0001163)


  • Catalogue No.:PA EPY0001163

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

ursodeoxycholic acid impurity standard (1142RB)

ursodeoxycholic acid impurity standard (1142RB)


  • Catalogue No.:PA BP1142RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

ursodeoxycholic acid (706RB)

ursodeoxycholic acid (706RB)


  • Catalogue No.:PA BP706RB

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 21 04051

Ursodeoxycholic Acid - Impurity E (Sodium Salt)

Desoxycholic Acid Sodium Salt


  • Catalogue No.:PA 21 04051

  • CAS :

    302-95-4

  • Molecular Formula : C24H39NaO4

  • Molecular Weight : 414.56

PA 21 04650

Ursodeoxycholic Acid-3-O-β-D-glucuronide Disodium Salt

Ursodeoxycholic Acid-3-O-β-D-glucuronide Disodium Salt


  • Catalogue No.:PA 21 04650

  • CAS :

    75672-30-9

  • Molecular Formula : C30H46Na2O10

  • Molecular Weight : 612.66

PA STI 088528

Ursodeoxycholic Acid-24-13C

Ursodeoxycholic Acid-24-13C


  • Catalogue No.:PA STI 088528

  • CAS :

    63296-46-8

  • Molecular Formula : C2313CH40O4

  • Molecular Weight : 393.57

PAI 21 004001

Methyl (4R)-4-((3R,7S,8R,9S,10S,13R,14S)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate

Methyl (4R)-4-((3R,7S,8R,9S,10S,13R,14S)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate


  • Catalogue No.:PAI 21 004001

  • CAS :

    NA

  • Molecular Formula : C25H42O4

  • Molecular Weight : 406.61

PAI 21 004002

Methyl (4R)-4-((3R,7S,8R,9S,10S,13R,14S)-7-hydroxy-10,13-dimethyl-3-(tosyloxy)hexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate

Methyl (4R)-4-((3R,7S,8R,9S,10S,13R,14S)-7-hydroxy-10,13-dimethyl-3-(tosyloxy)hexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate


  • Catalogue No.:PAI 21 004002

  • CAS :

    NA

  • Molecular Formula : C32H48O6S

  • Molecular Weight : 560.79

PAI 21 004003

Methyl (4R)-4-((3S,7S,8R,9S,10S,13R,14S)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate

Methyl (4R)-4-((3S,7S,8R,9S,10S,13R,14S)-3,7-dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate


  • Catalogue No.:PAI 21 004003

  • CAS :

    NA

  • Molecular Formula : C25H42O4

  • Molecular Weight : 406.61

PAI 21 004004

(3R,7S,8R,9S,10S,13R,14S)-17-((R)-5-Methoxy-5-oxopentan-2-yl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3,7-diyl Diacetate

(3R,7S,8R,9S,10S,13R,14S)-17-((R)-5-Methoxy-5-oxopentan-2-yl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthrene-3,7-diyl Diacetate


  • Catalogue No.:PAI 21 004004

  • CAS :

    NA

  • Molecular Formula : C29H46O6

  • Molecular Weight : 490.68

PAI 21 004005

Methyl (4R)-4-((3R,7S,8R,9S,10S,13R,14S)-7-acetoxy-3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate

Methyl (4R)-4-((3R,7S,8R,9S,10S,13R,14S)-7-acetoxy-3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate


  • Catalogue No.:PAI 21 004005

  • CAS :

    NA

  • Molecular Formula : C27H44O5

  • Molecular Weight : 448.64

PAI 21 004006

Methyl (4R)-4-((7S,8R,9S,10S,13R,14S)-7-acetoxy-10,13-dimethyl-3-oxohexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate

Methyl (4R)-4-((7S,8R,9S,10S,13R,14S)-7-acetoxy-10,13-dimethyl-3-oxohexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate


  • Catalogue No.:PAI 21 004006

  • CAS :

    NA

  • Molecular Formula : C27H42O5

  • Molecular Weight : 446.63

PAI 21 004007

Methyl (4R)-4-((3S,7S,8R,9S,10S,13R,14S)-7-acetoxy-3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate

Methyl (4R)-4-((3S,7S,8R,9S,10S,13R,14S)-7-acetoxy-3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate


  • Catalogue No.:PAI 21 004007

  • CAS :

    NA

  • Molecular Formula : C27H44O5

  • Molecular Weight : 448.64

PA 21 0041000

7β-Hydroxy-5β-cholanoic acid

7β-Hydroxy-5β-cholanoic acid


  • Catalogue No.:PA 21 0041000

  • CAS :

    10601-78-2

  • Molecular Formula : C24H40O3

  • Molecular Weight : 376.58

PA 21 0041001

(3α,5β,7β)-3,7-Dihydroxy-24-norcholane-23-nitrile

(3α,5β,7β)-3,7-Dihydroxy-24-norcholane-23-nitrile


  • Catalogue No.:PA 21 0041001

  • CAS :

    118316-12-4

  • Molecular Formula : C23H37NO2

  • Molecular Weight : 359.55

PA 21 0041002

Taurohyodeoxycholic acid

Taurohyodeoxycholic acid


  • Catalogue No.:PA 21 0041002

  • CAS :

    2958-04-5

  • Molecular Formula : C26H45NO6S

  • Molecular Weight : 499.71

PA 21 0041003

β-Hyodeoxycholic Acid

β-Hyodeoxycholic Acid


  • Catalogue No.:PA 21 0041003

  • CAS :

    570-84-3

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.58

PA 21 0041004

3α,12β-Dihydroxycholanoic Acid

3α,12β-Dihydroxycholanoic Acid


  • Catalogue No.:PA 21 0041004

  • CAS :

    570-62-7

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.58

PA 21 0041005

12-Ketoursodeoxycholic acid

12-Ketoursodeoxycholic acid


  • Catalogue No.:PA 21 0041005

  • CAS :

    81873-91-8

  • Molecular Formula : C24H38O5

  • Molecular Weight : 406.56

PA 21 0041006

3β-Deoxycholic Acid

3β-Deoxycholic Acid


  • Catalogue No.:PA 21 0041006

  • CAS :

    570-63-8

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.58

PA 21 0041009

Isochenodeoxycholic Acid

Isochenodeoxycholic Acid


  • Catalogue No.:PA 21 0041009

  • CAS :

    566-24-5

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.58

PA 21 0041010

(R)-4-((3R,5R,7S,8R,9S,10S,13R,14S,17R)-3,7-Dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic Acid

(R)-4-((3R,5R,7S,8R,9S,10S,13R,14S,17R)-3,7-Dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoic Acid


  • Catalogue No.:PA 21 0041010

  • CAS :

    105227-28-9

  • Molecular Formula : C24H40O4

  • Molecular Weight : 392.58

PA 21 0041008

6α-Ethyl Chenodeoxycholic Acid

6α-Ethyl Chenodeoxycholic Acid


  • Catalogue No.:PA 21 0041008

  • CAS :

    459789-99-2

  • Molecular Formula : C26H44O4

  • Molecular Weight : 420.63

PA 21 0041007

Methyl (4R)-4-((3S,7S,8R,9S,10S,13R,14S)-7-acetoxy-3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate

Methyl (4R)-4-((3S,7S,8R,9S,10S,13R,14S)-7-acetoxy-3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate


  • Catalogue No.:PA 21 0041007

  • CAS :

    NA

  • Molecular Formula : C27H44O5

  • Molecular Weight : 448.64

PA 21 0041011

(R)-3-((3R,5S,7S,8R,9S,10S,12S,13R,14S,17R)-3,7,12-Trihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)butanoic Acid

(R)-3-((3R,5S,7S,8R,9S,10S,12S,13R,14S,17R)-3,7,12-Trihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)butanoic Acid


  • Catalogue No.:PA 21 0041011

  • CAS :

    139265-35-3

  • Molecular Formula : C23H38O5

  • Molecular Weight : 394.55

PA 21 0041012

3α,12α-Dihydroxy-5β-chol-9(11)-enic Acid

3α,12α-Dihydroxy-5β-chol-9(11)-enic Acid


  • Catalogue No.:PA 21 0041012

  • CAS :

    24637-46-5

  • Molecular Formula : C24H38O4

  • Molecular Weight : 390.56

PA 21 0041013

7-Oxoisolithocholic Acid

7-Oxoisolithocholic Acid


  • Catalogue No.:PA 21 0041013

  • CAS :

    67008-26-8

  • Molecular Formula : C24H38O4

  • Molecular Weight : 390.56

PA 21 0041015

((R)-4-((3R,5R,8R,9S,10S,13R,14S,17R)-3-Hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoyl)-L-asparagine

((R)-4-((3R,5R,8R,9S,10S,13R,14S,17R)-3-Hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoyl)-L-asparagine


  • Catalogue No.:PA 21 0041015

  • CAS :

    1428095-38-8

  • Molecular Formula : C28H46N2O5

  • Molecular Weight : 490.69

PA 21 0041016

Ethyl Ursodeoxycholate

Ethyl Ursodeoxycholate


  • Catalogue No.:PA 21 0041016

  • CAS :

    69519-36-4

  • Molecular Formula : C26H44O4

  • Molecular Weight : 420.63

Ursodeoxycholic Acid Impurity A (IMPU004)

Ursodeoxycholic Acid Impurity A (IMPU004)


  • Catalogue No.:PA IMPU004

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Ursodeoxycholic Acid (IPRSU002)

Ursodeoxycholic Acid (IPRSU002)


  • Catalogue No.:PA IPRSU002

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 21 0041017

3α,7α-Dihydroxy-5β-chol-22(E)-enoic acid

3α,7α-Dihydroxy-5β-chol-22(E)-enoic acid


  • Catalogue No.:PA 21 0041017

  • CAS :

    110107-03-4

  • Molecular Formula : C24H38O4

  • Molecular Weight : 390.56

PA 21 0041018

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-Dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pent-2-enoic Acid

(R)-4-((3R,5S,7S,8R,9S,10S,13R,14S,17R)-3,7-Dihydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pent-2-enoic Acid


  • Catalogue No.:PA 21 0041018

  • CAS :

    163750-00-3

  • Molecular Formula : C24H38O4

  • Molecular Weight : 390.56

PA IMPU006

Ursodeoxycholic Acid Impurity H (IMPU006)

Ursodeoxycholic Acid Impurity H (IMPU006)


  • Catalogue No.:PA IMPU006

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 21 0041019

Methyl Cholate

Methyl Cholate


  • Catalogue No.:PA 21 0041019

  • CAS :

    1448-36-8

  • Molecular Formula : C25H42O5

  • Molecular Weight : 422.61