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Scope Pharmachem Plus LLP is a reliable contract research organization (CRO) specialized in the custom synthesis of pharmacopeial & non-pharmacopeial reference standards, working standards, drug metabolites, glucuronides, and nitrosamine impurities for global pharmaceutical quality assurance.

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Levothyroxine 13C6

Levothyroxine 13C6
Cat. No:CL-L022D04
CAS No:720710-30-5
Mol. F:C913C6H11I4NO4
Mol. Wt:782.8
Inv. Status:In Stock

Levothyroxine D3

Levothyroxine D3
Cat. No:CL-L022D01
CAS No:NA
Mol. F:C15H8D3I4NO4
Mol. Wt:779.9
Inv. Status:In Stock

Thyroxine-13C6

Thyroxine-13C6
Cat. No:CL-L022D03
CAS No:1217780-14-7
Mol. F:C913C6H11I4NO4
Mol. Wt:782.8
Inv. Status:In Stock

Levothyroxine 13C9 15N

Levothyroxine 13C9 15N
Cat. No:CL-L022D02
CAS No:1431868-11-9
Mol. F:C613C9H11I415NO4
Mol. Wt:786.8
Inv. Status:In Stock

Levothyroxine D5

Levothyroxine D5
Cat. No:CL-L022D05
CAS No:NA
Mol. F:C15H6D5I4NO4
Mol. Wt:781.9
Inv. Status:In Stock

3-Bromo-L-Thyroxine

3-Bromo-L-Thyroxine
Cat. No:CL-L022038
CAS No:1798894-90-2
Mol. F:C15H11BrI3NO4
Mol. Wt:729.9
Inv. Status:In Stock

N-Acetyl L-Thyroxine Ethyl Ester

N-Acetyl L-Thyroxine Ethyl Ester
Cat. No:CL-L022037
CAS No:30804-52-5
Mol. F:C19H17I4NO5
Mol. Wt:847
Inv. Status:In Stock

Levothyroxine Ethyl Ester

Levothyroxine Ethyl Ester
Cat. No:CL-L022020
CAS No:76353-71-4
Mol. F:C17H15I4NO4
Mol. Wt:804.9
Inv. Status:In Stock

Levothyroxine O-Methyl Amine Impurity

Levothyroxine O-Methyl Amine Impurity
Cat. No:CL-L022025
CAS No:2230724-39-5
Mol. F:C15H13I4NO2
Mol. Wt:746.9
Inv. Status:In Stock

Levothyroxine EP Impurity B

Levothyroxine EP Impurity B
Cat. No:CL-L022003
CAS No:1628720-66-0
Mol. F:C15H11ClI3NO4
Mol. Wt:685.4
Inv. Status:In Stock

Levothyroxine Impurity 18

Levothyroxine Impurity 18
Cat. No:CL-L022063
CAS No:NA
Mol. F:C33H45I4NO5
Mol. Wt:1043.3
Inv. Status:In Stock

Levothyroxine D-Isomer

Levothyroxine D-Isomer
Cat. No:CL-L022024
CAS No:51-49-0
Mol. F:C15H11I4NO4
Mol. Wt:776.9
Inv. Status:In Stock

Levothyroxine EP Impurity E

Levothyroxine EP Impurity E
Cat. No:CL-L022006
CAS No:1041-01-6
Mol. F:C15H13I2NO4
Mol. Wt:525.1
Inv. Status:In Stock

Levothyroxine

Levothyroxine
Cat. No:CL-L022032
CAS No:51-48-9
Mol. F:C15H11I4NO4
Mol. Wt:776.9
Inv. Status:In Stock

Monochlorotriiodothyronine (USP)

Monochlorotriiodothyronine (USP)
Cat. No:CL-L022022
CAS No:909279-46-5
Mol. F:C15H11ClI3NO4
Mol. Wt:685.4
Inv. Status:In Stock

Levothyroxine Impurity 13

Levothyroxine Impurity 13
Cat. No:CL-L022054
CAS No:77667-01-7
Mol. F:C15H11BrI3NO4
Mol. Wt:729.9
Inv. Status:In Stock

Levothyroxine Impurity 5

Levothyroxine Impurity 5
Cat. No:CL-L022033
CAS No:51-26-3
Mol. F:C15H11I3O4
Mol. Wt:636
Inv. Status:In Stock

Levothroxine Gallic Acid Adduct

Levothroxine Gallic Acid Adduct
Cat. No:CL-L022067
CAS No:NA
Mol. F:C22H15I4NO8
Mol. Wt:929
Inv. Status:In Stock

Levothyroxine Dimer

Levothyroxine Dimer
Cat. No:CL-L022055
CAS No:2088032-62-4
Mol. F:C30H21I7N2O8
Mol. Wt:1425.8
Inv. Status:In Stock

Levothyroxine Impurity 10

Levothyroxine Impurity 10
Cat. No:CL-L022050
CAS No:NA
Mol. F:C16H11I4NO5
Mol. Wt:804.9
Inv. Status:In Stock

Levothyroxine Hydroxyphenoxy Aldehyde Impurity

Levothyroxine Hydroxyphenoxy Aldehyde Impurity
Cat. No:CL-L022018
CAS No:2828-49-1
Mol. F:C13H8I2O3
Mol. Wt:466
Inv. Status:In Stock

Levothyroxine Impurity 15

Levothyroxine Impurity 15
Cat. No:CL-L022057
CAS No:NA
Mol. F:C27H31I4NO14
Mol. Wt:1101.2
Inv. Status:In Stock

Thyroxine Glucuronide

Thyroxine Glucuronide
Cat. No:CL-L022066
CAS No:21462-56-6
Mol. F:C21H19I4NO10
Mol. Wt:953
Inv. Status:In Stock

β-Hydroxy Thyroxine (USP)

β-Hydroxy Thyroxine (USP)
Cat. No:CL-L022043
CAS No:107849-54-7
Mol. F:C15H11I4NO5
Mol. Wt:792.9
Inv. Status:In Stock

Levothyroxine EP Impurity I

Levothyroxine EP Impurity I
Cat. No:CL-L022009
CAS No:2016-06-0
Mol. F:C13H6I4O3
Mol. Wt:717.8
Inv. Status:In Stock

Levothyroxine Impurity 26

Levothyroxine Impurity 26
Cat. No:CL-L022078
CAS No:NA
Mol. F:C15H14INO2
Mol. Wt:367.2
Inv. Status:In Stock

3,5-Dibromo-L-tyrosine

3,5-Dibromo-L-tyrosine
Cat. No:CL-L022042
CAS No:300-38-9
Mol. F:C9H9Br2NO3
Mol. Wt:339
Inv. Status:In Stock

Levothyroxine Sodium Pentahydrate

Levothyroxine Sodium Pentahydrate
Cat. No:CL-L022001
CAS No:25416-65-3
Mol. F:C15H10I4NO4 : Na : 5(H2O)
Mol. Wt:775.8
Inv. Status:In Stock

Levothyroxine EP Impurity D

Levothyroxine EP Impurity D
Cat. No:CL-L022005
CAS No:67-30-1
Mol. F:C14H8I4O4
Mol. Wt:747.8
Inv. Status:In Stock

Levothyroxine EP Impurity K

Levothyroxine EP Impurity K
Cat. No:CL-L022011
CAS No:5817-39-0
Mol. F:C15H12I3NO4
Mol. Wt:650.9
Inv. Status:In Stock

Levothyroxine Sodium (USP)

Levothyroxine Sodium (USP)
Cat. No:CL-L022044
CAS No:20156
Mol. F:C15H10I4NO4 : Na
Mol. Wt:775.9
Inv. Status:In Stock

Levothyroxine Impurity 20

Levothyroxine Impurity 20
Cat. No:CL-L022065
CAS No:NA
Mol. F:C17H13I4NO4
Mol. Wt:802.9
Inv. Status:In Stock

Levothyroxine Impurity Stage II

Levothyroxine Impurity Stage II
Cat. No:CL-L022072
CAS No:1795778-96-9
Mol. F:C19H17I4NO5
Mol. Wt:847
Inv. Status:In Stock

L-Thyronine

L-Thyronine
Cat. No:CL-L022075
CAS No:1596-67-4
Mol. F:C15H15NO4
Mol. Wt:273.3
Inv. Status:In Stock

Levothyroxine EP Impurity A

Levothyroxine EP Impurity A
Cat. No:CL-L022002
CAS No:20241
Mol. F:C15H11I3NO4 : Na
Mol. Wt:650
Inv. Status:In Stock

3,3’,5-Triiodo-D-thyronine

3,3’,5-Triiodo-D-thyronine
Cat. No:CL-L022056
CAS No:1393287
Mol. F:C15H12I3NO4
Mol. Wt:651
Inv. Status:In Stock

Thyroxine Sodium

Thyroxine Sodium
Cat. No:CL-L022051
CAS No:NA
Mol. F:C15H11I4NO4 : Na
Mol. Wt:776.9
Inv. Status:In Stock

N-Formyl-T4 and T4-Acetamide

N-Formyl-T4 and T4-Acetamide
Cat. No:CL-L022058
CAS No:NA
Mol. F:C16H11I4NO5 : C14H9I4NO3
Mol. Wt:804.9
Inv. Status:In Stock

Levothyroxine Impurity 21

Levothyroxine Impurity 21
Cat. No:CL-L022071
CAS No:2749357-47-7
Mol. F:C15H11I4NO5
Mol. Wt:792.9
Inv. Status:In Stock

Levothyroxine Methyl Ester

Levothyroxine Methyl Ester
Cat. No:CL-L022021
CAS No:32180-11-3
Mol. F:C16H13I4NO4
Mol. Wt:790.9
Inv. Status:In Stock

Levothyroxine Lactose Adduct

Levothyroxine Lactose Adduct
Cat. No:CL-L022045
CAS No:NA
Mol. F:C27H32I3NO14
Mol. Wt:975.3
Inv. Status:In Stock

3,5,3',5'-Tetraiodo Thyrolactic Acid

3,5,3',5'-Tetraiodo Thyrolactic Acid
Cat. No:CL-L022026
CAS No:7069-47-8
Mol. F:C15H10I4O5
Mol. Wt:777.9
Inv. Status:In Stock

Levothyroxine Impurity 2

Levothyroxine Impurity 2
Cat. No:CL-L022029
CAS No:176258-89-2
Mol. F:C14H10I4O2
Mol. Wt:717.9
Inv. Status:In Stock

T4-Formic acid N-methylamide

T4-Formic acid N-methylamide
Cat. No:CL-L022035
CAS No:2088032-78-2
Mol. F:C14H9I4NO3
Mol. Wt:746.8
Inv. Status:In Stock

Levothyroxine EP Impurity C

Levothyroxine EP Impurity C
Cat. No:CL-L022004
CAS No:51-24-1
Mol. F:C14H9I3O4
Mol. Wt:621.9
Inv. Status:In Stock

Liothyronine Maillard Lactose Impurity

Liothyronine Maillard Lactose Impurity
Cat. No:CL-L022039
CAS No:NA
Mol. F:C27H32I3NO14
Mol. Wt:975.3
Inv. Status:In Stock

Levothyroxine Impurity 25

Levothyroxine Impurity 25
Cat. No:CL-L022077
CAS No:NA
Mol. F:C9H7I2NO2
Mol. Wt:415
Inv. Status:In Stock

Levothyroxine N-Methylamide (USP)

Levothyroxine N-Methylamide (USP)
Cat. No:CL-L022023
CAS No:2088032-52-2
Mol. F:C16H14I4N2O3
Mol. Wt:789.9
Inv. Status:In Stock

Levothyroxine Impurity 17

Levothyroxine Impurity 17
Cat. No:CL-L022062
CAS No:NA
Mol. F:C33H45I4NO5
Mol. Wt:1043.3
Inv. Status:In Stock

Levothyroxine Impurity 16

Levothyroxine Impurity 16
Cat. No:CL-L022059
CAS No:92905-78-7
Mol. F:C14H10I3NO3
Mol. Wt:621
Inv. Status:In Stock

3,5-Dichloro-L-Tyrosine

3,5-Dichloro-L-Tyrosine
Cat. No:CL-L022041
CAS No:15106-62-4
Mol. F:C9H9Cl2NO3
Mol. Wt:250.1
Inv. Status:In Stock

N,O-Diacetyl Diiodotyrosine (USP)

N,O-Diacetyl Diiodotyrosine (USP)
Cat. No:CL-L022070
CAS No:153324-21-1
Mol. F:C13H13I2NO5
Mol. Wt:517.1
Inv. Status:In Stock

Levothyroxine N-Formyl-T4 Impurity (USP)

Levothyroxine N-Formyl-T4 Impurity (USP)
Cat. No:CL-L022015
CAS No:671235-41-9
Mol. F:C16H11I4NO5
Mol. Wt:804.9
Inv. Status:In Stock

Levothyroxine Impurity 23

Levothyroxine Impurity 23
Cat. No:CL-L022074
CAS No:189447-39-0
Mol. F:C11H12I2O3
Mol. Wt:446
Inv. Status:In Stock

Levothyroxine Impurity 29

Levothyroxine Impurity 29
Cat. No:CL-L022081
CAS No:NA
Mol. F:C15H12I3NO2
Mol. Wt:619
Inv. Status:In Stock

Levothyroxine Mannitol Adduct

Levothyroxine Mannitol Adduct
Cat. No:CL-L022040
CAS No:NA
Mol. F:C21H23I4NO9
Mol. Wt:941
Inv. Status:In Stock

Levothyroxine Impurity 12

Levothyroxine Impurity 12
Cat. No:CL-L022053
CAS No:889871-36-7
Mol. F:C9H9ClINO3
Mol. Wt:341.5
Inv. Status:In Stock

Levothyroxine Impurity 11

Levothyroxine Impurity 11
Cat. No:CL-L022052
CAS No:2244907-74-0
Mol. F:C13H12IO2 : CF3O3S
Mol. Wt:327.1
Inv. Status:In Stock

L-Tyrosine,3,5-diiodo-o-(4-Methoxyphenyl)

L-Tyrosine,3,5-diiodo-o-(4-Methoxyphenyl)
Cat. No:CL-L022027
CAS No:94345-95-6
Mol. F:C16H15I2NO4
Mol. Wt:539.1
Inv. Status:In Stock

Levothyroxine Impurity 22

Levothyroxine Impurity 22
Cat. No:CL-L022073
CAS No:1158-10-7
Mol. F:C15H12I2O4
Mol. Wt:510.1
Inv. Status:In Stock

3-Monoiodothyronine

3-Monoiodothyronine
Cat. No:CL-L022049
CAS No:16170-92-6
Mol. F:C15H14INO4
Mol. Wt:399.2
Inv. Status:In Stock

Levothyroxine Impurity 3

Levothyroxine Impurity 3
Cat. No:CL-L022030
CAS No:854646-83-6
Mol. F:C8H7I2NO3
Mol. Wt:419
Inv. Status:In Stock

Thyroxamine Hydrochloride

Thyroxamine Hydrochloride
Cat. No:CL-L022048
CAS No:788824-71-5
Mol. F:C14H11I4NO2 : HCl
Mol. Wt:732.9
Inv. Status:In Stock

Levothyroxine Impurity 19

Levothyroxine Impurity 19
Cat. No:CL-L022064
CAS No:NA
Mol. F:C30H31I4NO5
Mol. Wt:993.2
Inv. Status:In Stock

Levothyroxine Impurity 9

Levothyroxine Impurity 9
Cat. No:CL-L022047
CAS No:3861-58-3
Mol. F:C7H4INO4
Mol. Wt:293
Inv. Status:In Stock

Levothyroxine T4-Keto-acetic acid

Levothyroxine T4-Keto-acetic acid
Cat. No:CL-L022069
CAS No:1421272-69-6
Mol. F:C14H6I4O5
Mol. Wt:761.8
Inv. Status:In Stock

Levothyroxine N-Acetyl-T4 Impurity (USP)

Levothyroxine N-Acetyl-T4 Impurity (USP)
Cat. No:CL-L022017
CAS No:26041-51-0
Mol. F:C17H13I4NO5
Mol. Wt:818.9
Inv. Status:In Stock

Levothyroxine EP Impurity H

Levothyroxine EP Impurity H
Cat. No:CL-L022008
CAS No:2055-97-2
Mol. F:C13H6I4O4
Mol. Wt:733.8
Inv. Status:In Stock

Levothyroxine Impurity 24

Levothyroxine Impurity 24
Cat. No:CL-L022076
CAS No:NA
Mol. F:C15H14O2
Mol. Wt:226.3
Inv. Status:In Stock

Levothyroxine EP Impurity J

Levothyroxine EP Impurity J
Cat. No:CL-L022010
CAS No:4604-41-5
Mol. F:C15H13I2NO4
Mol. Wt:525.1
Inv. Status:In Stock

Levothyroxine Impurity 27

Levothyroxine Impurity 27
Cat. No:CL-L022079
CAS No:NA
Mol. F:C15H13IO2
Mol. Wt:352.2
Inv. Status:In Stock

3,5-Diiodo Thyroacetic Acid

3,5-Diiodo Thyroacetic Acid
Cat. No:CL-L022060
CAS No:1155-40-4
Mol. F:C14H10I2O4
Mol. Wt:496
Inv. Status:In Stock

Levothyroxine T4-Hydroxyacetic acid (USP)

Levothyroxine T4-Hydroxyacetic acid (USP)
Cat. No:CL-L022014
CAS No:93647-48-4
Mol. F:C14H8I4O5
Mol. Wt:763.8
Inv. Status:In Stock

Levothyroxine Glucose Adduct

Levothyroxine Glucose Adduct
Cat. No:CL-L022034
CAS No:NA
Mol. F:C21H21I4NO9
Mol. Wt:939
Inv. Status:In Stock

Levothyroxine Impurity 4

Levothyroxine Impurity 4
Cat. No:CL-L022031
CAS No:NA
Mol. F:C16H12I4NO4 : Na
Mol. Wt:789.9
Inv. Status:In Stock

Levothyroxine Impurity 28

Levothyroxine Impurity 28
Cat. No:CL-L022080
CAS No:NA
Mol. F:C15H11I3O3
Mol. Wt:620
Inv. Status:In Stock

Levothyroxine EP Impurity F

Levothyroxine EP Impurity F
Cat. No:CL-L022007
CAS No:911661-90-0
Mol. F:C21H13I6NO5
Mol. Wt:1120.8
Inv. Status:In Stock

Levothyroxine Impurity 1

Levothyroxine Impurity 1
Cat. No:CL-L022028
CAS No:2055-94-9
Mol. F:C13H8I4O3
Mol. Wt:719.8
Inv. Status:In Stock

Levothyroxine Impurity 30

Levothyroxine Impurity 30
Cat. No:CL-L022082
CAS No:NA
Mol. F:C15H11I3O3
Mol. Wt:620
Inv. Status:In Stock

Digallic Acid

Digallic Acid
Cat. No:CL-L022068
CAS No:536-08-3
Mol. F:C14H10O9
Mol. Wt:322.2
Inv. Status:In Stock

Levothyroxine T4-Acetamide Impurity (USP)

Levothyroxine T4-Acetamide Impurity (USP)
Cat. No:CL-L022016
CAS No:176258-88-1
Mol. F:C14H9I4NO3
Mol. Wt:746.8
Inv. Status:In Stock

O-(4-Hydroxy-3-iodophenyl) Levothyroxine

O-(4-Hydroxy-3-iodophenyl) Levothyroxine
Cat. No:CL-L022061
CAS No:2086274-34-0
Mol. F:C21H14I5NO5
Mol. Wt:994.9
Inv. Status:In Stock

Levothyroxine Methoxyphenoxy Aldehyde Impurity

Levothyroxine Methoxyphenoxy Aldehyde Impurity
Cat. No:CL-L022019
CAS No:69240-57-9
Mol. F:C14H10I2O3
Mol. Wt:480
Inv. Status:In Stock

Levothyroxine Impurity 6

Levothyroxine Impurity 6
Cat. No:CL-L022036
CAS No:105172-64-3
Mol. F:C15H11I3N2O6
Mol. Wt:696
Inv. Status:In Stock

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