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All APIs CRMs Stable Isotope Labeled Nitrosamines Impurities Glucuronides Metabolites Other New Products

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Showing 1–100 of 267 standards · Impurities

U-012IN STOCK

Uridine (Adenosine EP Impurity F, Cytarabine EP Impurity B)

CAS #58-96-8

Mol. formulaC₉H₁₂N₂O₆

Mol. weight244.20

Details

U-012003IN STOCK

Umeclidinium Bromide Impurity 1 HCl

CAS #NA

Mol. formulaC₁₀H₁₇NO₂. HCl

Mol. weight183.25 36.46

Details

U-012004IN STOCK

Umeclidinium Bromide Impurity 2 HCl

CAS #NA

Mol. formulaC₂₀H₂₃NO. HCl

Mol. weight293.41 36.46

Details

U-012005IN STOCK

Umeclidinium Bromide Impurity 3 Bromide

CAS #869112-31-2

Mol. formulaC₂₂H₂₈NO₂. Br

Mol. weight338.47 79.90

Details

U-012006IN STOCK

Umeclidinium Bromide Impurity 4 Bromide

CAS #869113-45-1

Mol. formulaC₂₉H₃₂NO₃. Br

Mol. weight442.58 79.90

Details

U-012007IN STOCK

Umeclidinium Bromide Impurity 5 Bromide

CAS #NA

Mol. formulaC₁₂H₁₄BrNO. Br

Mol. weight401.37 79.90

Details

U-012008IN STOCK

Umeclidinium Bromide Impurity 6 Bromide

CAS #NA

Mol. formulaC₄₄H₅₄N₂O₃. 2 Br

Mol. weight658.93 2*79.90

Details

U-012009IN STOCK

Umeclidinium Bromide Impurity 7 HCl

CAS #40117-63-3

Mol. formulaC8H13NO2. HCl

Mol. weight155.20 36.46

Details

U-012010IN STOCK

Umeclidinium Bromide Impurity 8 Bromide

CAS #NA

Mol. formulaC₁₉H₂₈NO₃. Br

Mol. weight318.44 79.90

Details

U-012011IN STOCK

Umeclidinium Bromide Impurity 9 DiHCl

CAS #NA

Mol. formulaC₁₈H₃₂N₂O₄. 2 HCl

Mol. weight340.47 2*36.46

Details

U-012012IN STOCK

Umeclidinium Bromide Impurity 10

CAS #461648-39-5

Mol. formulaC₂₀H₂₃NO

Mol. weight293.41

Details

U-012013IN STOCK

Umeclidinium Bromide Impurity 11 Bromide

CAS #869113-10-0

Mol. formulaC₂₇H₃₀NO. Br

Mol. weight384.54 79.90

Details

U-012014IN STOCK

Umeclidinium Bromide Impurity 12 Bromide

CAS #2253743-40-5

Mol. formulaC₃₅H₃₈NO₂. Br

Mol. weight504.69 79.90

Details

U-012016IN STOCK

Umeclidinium Bromide Impurity 14 HCl

CAS #25519-80-6

Mol. formulaC₁₂H₁₅NO. HCl

Mol. weight189.26 36.46

Details

U-012018BACK ORDER

Umeclidinium Bromide Impurity 15

CAS #2230024-91-4

Mol. formulaC₁₄H₁₇NO

Mol. weight215.30

Details

U-012019BACK ORDER

Umeclidinium Bromide Impurity 16

CAS #2253743-32-5

Mol. formulaC₂₆H₂₇NO

Mol. weight369.51

Details

U-012020BACK ORDER

Umeclidinium Bromide Impurity 17

CAS #2253743-36-9

Mol. formulaC₃₅H₃₈NO₂ Br

Mol. weight504.69 79.90

Details

U-012021BACK ORDER

Umeclidinium Bromide Impurity 18

CAS #2253743-33-6

Mol. formulaC₂₆H₂₇NO

Mol. weight369.51

Details

U-012022BACK ORDER

Umeclidinium Bromide Impurity 19

CAS #2253743-38-1

Mol. formulaC₃₅H₃₈NO₂ Br

Mol. weight504.69 79.90

Details

U-012024BACK ORDER

Umeclidinium Bromide Impurity 20

CAS #72034-25-4

Mol. formulaC₁₂H₉NO. HCl

Mol. weight183.21 36.46

Details

U-012025BACK ORDER

Umeclidinium Bromide Impurity 21

CAS #139676-51-0

Mol. formulaC₁₄H₁₉NO₂

Mol. weight233.31

Details

U-012026BACK ORDER

Umeclidinium Bromide Impurity 22

CAS #NA

Mol. formulaC₂₀H₂₅NO₂

Mol. weight311.43

Details

U-012027IN STOCK

Umeclidinium Bromide Impurity 23

CAS #1462-37-9

Mol. formulaC₉H₁₁BrO

Mol. weight215.09

Details

U-012028BACK ORDER

Umeclidinium Bromide Impurity 24 Bromide

CAS #NA

Mol. formulaC₂₉H₃₃FNO₂. Br

Mol. weight446.59 79.90

Details

U-0125IN STOCK

Uridine Impurity 1

CAS #3736-77-4

Mol. formulaC₉H₁₀N₂O₅

Mol. weight226.19

Details

U-0130IN STOCK

Uridine Impurity 2 (Pseudouridine)

CAS #1445-07-4

Mol. formulaC₉H₁₂N₂O₆

Mol. weight244.20

Details

U-0131IN STOCK

Uridine Impurity 3

CAS #215110-22-8

Mol. formulaC₂₅H₃₀N₂O₆Si

Mol. weight482.61

Details

U-0135BACK ORDER

Uridine Impurity 4

CAS #117756-22-6

Mol. formulaC₁₅H₂₂N₂O₁₇P₂

Mol. weight564.29

Details

U-014013BACK ORDER

Skimmin (Umbelliferone Glucoside)

CAS #93-39-0

Mol. formulaC₁₅H₁₆O₈

Mol. weight324.29

Details

U-0141BACK ORDER

Uridine Impurity 5 (5-Aza-Uridine)

CAS #1476-82-0

Mol. formulaC₈H₁₁N₃O₆

Mol. weight245.19

Details

U-0144BACK ORDER

Uridine Impurity 6

CAS #4348-60-1

Mol. formulaC₉H₁₂N₂O₆

Mol. weight244.20

Details

U-0145BACK ORDER

Uridine Impurity 7

CAS #20289-61-6

Mol. formulaC₉H₁₂N₂O₆

Mol. weight244.20

Details

U-0146BACK ORDER

Uridine Impurity 8

CAS #945684-13-9

Mol. formulaC₁₂H₁₆N₂O₉

Mol. weight332.27

Details

U-0150BACK ORDER

Uridine Impurity 9

CAS #10141-65-8

Mol. formulaC₉H₁₄N₂O₇

Mol. weight262.22

Details

U-0152BACK ORDER

5-Methoxyuridine

CAS #35542-01-9

Mol. formulaC₁₀H₁₄N₂O₇

Mol. weight274.23

Details

U-0155BACK ORDER

Uridine Impurity 10

CAS #103285-22-9

Mol. formulaC₃₁H₃₂N₂O₈

Mol. weight560.60

Details

U-0156BACK ORDER

Uridine Impurity 11

CAS #2768224-36-6

Mol. formulaC₆₈H₈₆N₅O₂₀P

Mol. weight1324.42

Details

U-0157BACK ORDER

Uridine Impurity 12

CAS #38817-29-7

Mol. formulaC₉H₁₁FN₂O₅

Mol. weight246.19

Details

U-017007BACK ORDER

(E)-Undec-5-ene

CAS #764-97-6

Mol. formula C₁₁H₂₂

Mol. weight154.30

Details

U-017008BACK ORDER

(Z)-5-Undecene

CAS #764-96-5

Mol. formulaC₁₁H₂₂

Mol. weight154.30

Details

U-017009BACK ORDER

2,4,6,8-Tetramethyl-1-Undecene

CAS #59920-26-2

Mol. formulaC₁₅H₃₀

Mol. weight210.41

Details

U-018003BACK ORDER

Ubrogepant Impurity 1

CAS #1456803-37-4

Mol. formulaC₁₄H₁₇F₃N₂O. C₇H₅NO₄

Mol. weight286.30 167.12

Details

U-018004IN STOCK

Ubrogepant Impurity 2

CAS #1375541-21-1

Mol. formulaC₁₅H₁₁N₃O₃

Mol. weight281.27

Details

U-018005BACK ORDER

Ubrogepant Impurity 3

CAS #NA

Mol. formulaC₂₉H₂₈F₃N₅O₄

Mol. weight567.57

Details

U-018006BACK ORDER

Ubrogepant Impurity 4

CAS #NA

Mol. formulaC₂₉H₂₈F₃N₅O₄

Mol. weight567.57

Details

U-018007INQUIRE FURTHER

Ubrogepant Impurity 5

CAS #NA

Mol. formulaC₃₁H₂₉F₃N₆O₄

Mol. weight606.61

Details

U-018010BACK ORDER

Ubrogepant Impurity 6

CAS #1486481-91-7

Mol. formulaC₁₅H₁₁N₃O₃

Mol. weight281.27

Details

U-018011BACK ORDER

Ubrogepant Impurity 7

CAS #2568065-21-2

Mol. formulaC₁₅H₁₁N₃O₃

Mol. weight281.27

Details

U-018012BACK ORDER

Ubrogepant Impurity 8

CAS #NA

Mol. formulaC₂₉H₂₆F₃N₅O₃

Mol. weight549.55

Details

U-0212IN STOCK

Ursodeoxycholic Acid EP Impurity G (Chenodeoxycholic Acid EP Impurity G)

CAS #10538-55-3

Mol. formulaC₂₅H₄₂O₄

Mol. weight406.61

Details

U-0213BACK ORDER

Ursodeoxycholic Acid Impurity 1

CAS #859-97-2

Mol. formulaC₂₄H₃₆O₄

Mol. weight388.55

Details

U-0214BACK ORDER

Ursodeoxycholic Acid Impurity 2

CAS #69519-36-4

Mol. formulaC₂₆H₄₄O₄

Mol. weight420.63

Details

U-0215BACK ORDER

Ursodeoxycholic Acid Impurity 3

CAS #28083-34-3

Mol. formulaC₂₄H₄₀O₃

Mol. weight376.58

Details

U-0217BACK ORDER

Ursodeoxycholic Acid Impurity 4

CAS #10601-78-2

Mol. formulaC₂₄H₄₀O₃

Mol. weight376.58

Details

U-0218IN STOCK

Ursodiol USP Related Compound H (Ursodeoxycholic Acid EP Impurity H, Isoursodeoxycholic Acid)

CAS #78919-26-3

Mol. formulaC₂₄H₄₀O₄

Mol. weight392.58

Details

U-0219IN STOCK

Ursodeoxycholic Acid EP Impurity I

CAS #130593-75-8

Mol. formulaC₂₄H₄₂O₃

Mol. weight378.60

Details

U-0220BACK ORDER

Ursodiol Impurity 1

CAS #77060-26-5

Mol. formulaC₂₄H₃₈O

Mol. weight390.56

Details

U-0223BACK ORDER

Ursodiol-3-Sulfate Disodium Salt

CAS #191286-16-5

Mol. formulaC₂₄H₃₈O₇S. 2Na

Mol. weight470.62 2*22.99

Details

U-0224BACK ORDER

Ursodiol-7-Sulfate Disodium Salt

CAS #71781-68-5

Mol. formulaC₂₄H₃₈O₇S. 2Na

Mol. weight470.62 2*22.99

Details

U-0225BACK ORDER

Ursodiol-3,7-Disulfate Trisodium Salt

CAS #89232-83-7

Mol. formulaC₂₄H₃₇O₁₀S₂. 3Na

Mol. weight549.67 3*22.99

Details

U-0227IN STOCK

Ursodeoxycholic Acid Impurity 5

CAS #93861-58-6

Mol. formulaC₂₆H₄₃NO₅

Mol. weight449.63

Details

U-0228BACK ORDER

Norursodeoxycholic Acid

CAS #99697-24-2

Mol. formula C₂₃H₃₈O₄

Mol. weight378.55

Details

U-029IN STOCK

Ursodeoxycholic Acid EP Impurity F

CAS #4651-67-6

Mol. formulaC₂₄H₃₈O₄

Mol. weight390.56

Details

U-0310BACK ORDER

Udenafil Impurity 8

CAS #1810029-01-6

Mol. formulaC₂₅H₃₆N₆O₅S

Mol. weight532.66

Details

U-0311BACK ORDER

Udenafil Impurity 9

CAS #NA

Mol. formulaC₂₆H₃₈N₆O₄S

Mol. weight530.69

Details

U-0312BACK ORDER

Udenafil Impurity 10

CAS #NA

Mol. formulaC₁₈H₂₄N₄O₆S

Mol. weight424.47

Details

U-0313BACK ORDER

Udenafil Impurity 11 (2-Propoxybenzoic Acid)

CAS #2100-31-4

Mol. formulaC₁₀H₁₂O₃

Mol. weight180.20

Details

U-0314BACK ORDER

Udenafil Impurity 12

CAS #139756-04-0

Mol. formulaC₁₈H₂₄N₄O₃

Mol. weight344.42

Details

U-0315BACK ORDER

Udenafil Impurity 13

CAS #32776-22-0

Mol. formulaC₇H₁₆N₂

Mol. weight128.22

Details

U-0316BACK ORDER

N-Boc-Udenafil Impurity 13

CAS #1395890-45-5

Mol. formulaC₁₂H₂₄N₂O₂

Mol. weight228.34

Details

U-0317BACK ORDER

Udenafil Impurity 14

CAS #NA

Mol. formulaC₂₆H₄₀N₆O₅S

Mol. weight 548.70

Details

U-0318BACK ORDER

Udenafil Impurity 15

CAS #374776-34-8

Mol. formulaC₁₈H₂₃ClN₄O₅S

Mol. weight442.92

Details

U-0319BACK ORDER

Udenafil Impurity 16

CAS #NA

Mol. formulaC₁₈H₂₈N₂O₅S

Mol. weight384.49

Details

U-0320BACK ORDER

Udenafil Impurity 17

CAS #138356-55-5

Mol. formulaC₈H₁₈N₂

Mol. weight142.25

Details

U-0321BACK ORDER

Udenafil Impurity 18

CAS #139756-24-4

Mol. formulaC₁₈H₂₁ClN₄O₄S

Mol. weight424.90

Details

U-0322BACK ORDER

Udenafil Impurity 19

CAS #NA

Mol. formulaC₂₀H₂₆N₄O₅S

Mol. weight434.51

Details

U-0323BACK ORDER

Udenafil Impurity 20

CAS #NA

Mol. formulaC₂₁H₂₈N₄O₅S

Mol. weight448.54

Details

U-0324BACK ORDER

Udenafil Impurity 21

CAS #NA

Mol. formulaC₁₈H₂₄N₄O₃

Mol. weight344.42

Details

U-0325BACK ORDER

Udenafil Impurity 22

CAS #NA

Mol. formulaC₁₈H₂₃N₃O₄

Mol. weight345.40

Details

U-0326BACK ORDER

Udenafil Impurity 23

CAS #NA

Mol. formulaC₁₈H₂₂ClN₃O₆S

Mol. weight443.90

Details

U-0327BACK ORDER

Udenafil Impurity 24

CAS #215298-75-2

Mol. formulaC₁₇H₂₂N₄O₃

Mol. weight330.39

Details

U-0328BACK ORDER

Udenafil Impurity 25

CAS #NA

Mol. formulaC₂₃H₃₄N₆O₅S

Mol. weight506.62

Details

U-033IN STOCK

Udenafil Impurity 1

CAS #2761158-33-0

Mol. formulaC₁₈H₂₂N₄O₅S

Mol. weight406.46

Details

U-034IN STOCK

Udenafil Impurity 2

CAS #268204-07-5

Mol. formulaC24H34N6O4S

Mol. weight502.64

Details

U-035IN STOCK

Udenafil Impurity 3

CAS #NA

Mol. formulaC₂₂H₃₂N₆O₅S

Mol. weight492.60

Details

U-036BACK ORDER

Udenafil Impurity 4

CAS #2562360-05-6

Mol. formulaC₂₂H₃₀N₆O₄S

Mol. weight474.58

Details

U-037BACK ORDER

Udenafil Impurity 5

CAS #NA

Mol. formulaC₂₂H₃₀N₆O₅S

Mol. weight490.58

Details

U-038BACK ORDER

Udenafil Impurity 6

CAS #NA

Mol. formulaC₂₅H₃₈N₆O₅S

Mol. weight534.68

Details

U-039BACK ORDER

Udenafil Impurity 7

CAS #936951-20-1

Mol. formulaC₂₅H₃₆N₆O₄S

Mol. weight516.66

Details

U-051IN STOCK

Uracil (Lamivudine EP Impurity F, Fluorouracil EP Impurity C)

CAS #66-22-8

Mol. formulaC₄H₄N₂O₂

Mol. weight112.09

Details

U-0515BACK ORDER

Uracil Impurity 7

CAS #6642-31-5

Mol. formulaC₆H₉N₃O₂

Mol. weight155.16

Details

U-0516BACK ORDER

Uracil Impurity 8

CAS #1308677-74-8

Mol. formulaC₉H₁₁N₃O₅

Mol. weight241.20

Details

U-0519BACK ORDER

Uracil Impurity 9

CAS #NA

Mol. formulaC₆H₆F₂N₂O₂

Mol. weight176.12

Details

U-052IN STOCK

Uracil-13C-15N2 (Lamivudine EP Impurity F-13C-15N2, Fluorouracil EP Impurity C-13C-15N2)

CAS #181517-11-3

Mol. formulaC₃¹³CH₄¹⁵N₂O₂

Mol. weight115.07

Details

U-0520BACK ORDER

Uracil Impurity 10

CAS #64582-49-6

Mol. formulaC₅H₄F₂N₂O₂

Mol. weight162.10

Details

U-0521IN STOCK

Uracil Impurity 11

CAS #57412-59-6

Mol. formulaC₇H₆N₂O₄

Mol. weight182.14

Details

U-053BACK ORDER

Uracil Impurity 1

CAS #NA

Mol. formulaC6H9N3O2

Mol. weight155.16

Details

U-054IN STOCK

Uracil Impurity 2

CAS #5440-00-6

Mol. formulaC₆H₁₀N₄O₂

Mol. weight170.17

Details

U-055IN STOCK

Uracil Impurity 3

CAS #58537-55-6

Mol. formulaC₆H₈N₄O₃

Mol. weight184.16

Details

U-056IN STOCK

Uracil Impurity 4 HCl

CAS #134452-11-2

Mol. formulaC₉H₁₆N₄O₆. HCl

Mol. weight276.25 36.46

Details

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