Impurity Reference Standard - Products

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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Mometasone and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Mometasone impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Mometasone-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

Mometasone

CAT No: CL-MMSN-01 CAS No: 105102-22-5 Mol Wt: 427.4 Mol F: C22H28CI2O4 Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-11?17-dihydroxy-16a-methylpregna-1,4-diene-3,20-dione

Mometasone Furoate

CAT No: CL-MMSN-02 CAS No: 83919-23-7 Mol Wt: 521.4 Mol F: C27H30CI2O6 Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-11?hydroxy- 16a-methyl-3,20-dioxopregna-1,4-dien-17-yl furan-2-carboxylate ; (9,21-Dichloro-11?17-dihydroxy-16a-methylpregna-1,4-diene-3,20-dione 17-(2-furoate) (as per USP)

Mometasone EP Impurity A

CAT No: CL-MMSN-03 CAS No: 83880-65-3 Mol Wt: 469 Mol F: C27H29CIO5 Inv Status: Custom Synthesis

Chemical Name: 21-Chloro-16a-methyl-3,20-dioxopregna-1,4,9(11)-trien-17-yl furan-2-carboxylate

Mometasone EP Impurity B

CAT No: CL-MMSN-04 CAS No: 223776-49-6 Mol Wt: 563.1 Mol F: C28H31CIO8S Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-17?(2,2-dioxo-2,5-dihydro-1,2?6-oxathiol-4-yl)-11?hydroxy-16a-methyl-3-oxoandrosta-1,4-dien-17a-yl furan-2-carboxylate

Mometasone EP Impurity C

CAT No: CL-MMSN-05 CAS No: 1305334-31-9 Mol Wt: 485 Mol F: C27H29CIO6 Inv Status: Custom Synthesis

Chemical Name: 21-Chloro-16a-methyl-3,11,20-trioxopregna-1,4-dien-17-yl furan-2-carboxylate

Mometasone EP Impurity D

CAT No: CL-MMSN-06 CAS No: 83881-09-8 Mol Wt: 485 Mol F: C27H29CIO6 Inv Status: In Stock

Chemical Name: 21-Chloro-9,11?epoxy-16a-methyl-3,20-dioxo-9?pregna-1,4-dien-17-yl furan-2-carboxylate

Mometasone EP Impurity E

CAT No: CL-MMSN-07 CAS No: 1370190-33-2 Mol Wt: 615.5 Mol F: C32H32CI2O8 Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-16a-methyl-3,20-dioxopregna-1,4-diene-11?17-diyl di(furan-2-carboxylate)

Mometasone EP Impurity F

CAT No: CL-MMSN-08 CAS No: 1305334-30-8 Mol Wt: 535.4 Mol F: C27H28CI2O7 Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-11?hydroxy-16a-methyl-3,6,20-trioxopregna-1,4-dien-17-yl furan-2-carboxylate

Mometasone EP Impurity G

CAT No: CL-MMSN-09 CAS No: 105102-22-5 Mol Wt: 427.4 Mol F: C22H28CI2O4 Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-11?17-dihydroxy-16a-methylpregna-1,4-diene-3,20-dione

Mometasone EP Impurity H

CAT No: CL-MMSN-10 CAS No: 148596-90-1 Mol Wt: 503 Mol F: C27H31CIO7 Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-11?21-dihydroxy-16a-methyl-3,20-dioxopregna-1,4-dien-17-yl furan-2-carboxylate

Mometasone EP Impurity I

CAT No: CL-MMSN-11 CAS No: NA Mol Wt: 581.5 Mol F: C29H34Cl2O8 Inv Status: Custom Synthesis

Chemical Name: 6?-Acetoxy-9,21-dichloro-11?hydroxy-16a-methyl-3,20-dioxo-5?-pregn-1-en-17-yl furan-2-carboxylate (as per EP

Mometasone-17,20-Difuroate

CAT No: CL-MMSN-12 CAS No: NA Mol Wt: 615.5 Mol F: C32H32Cl2O8 Inv Status: Custom Synthesis

Chemical Name: (E)-2-Chloro-1-((8S,9R,10S,11S,13S,14S,16R,17R)-9-chloro-17-((furan-2-carbonyl)oxy)-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl)vinyl furan-2-carboxylate

Mometasone Furoate Impurity 1

CAT No: CL-MMSN-13 CAS No: NA Mol Wt: 489 Mol F: C26H29ClO7 Inv Status: Custom Synthesis

Chemical Name: (8S,9R,10S,11S,13S,14S,16R,17R)-9-Chloro-11-hydroxy-17-(2-hydroxyacetyl)-13,16-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl furan-2-carboxylate

Mometasone Furoate Impurity 2

CAT No: CL-MMSN-14 CAS No: NA Mol Wt: 519.4 Mol F: C27H28Cl2O6 Inv Status: Custom Synthesis

Chemical Name: (8S,9R,10S,13S,14S,16R,17R)-9-Chloro-17-(2-chloroacetyl)-10,13,16-trimethyl-3,11-dioxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl furan-2-carboxylate

Mometasone Furoate Monohydrate

CAT No: CL-MMSN-15 CAS No: 141646-00-6 Mol Wt: 521.4 : 18.0 Mol F: C27H30CI2O6 : H2O Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-11b-hydroxy-16a-methyl-3,20-dioxopregna-1,4-dien-17-yl furan-2-carboxylate monohydrate

Mometasone EP Impurity J

CAT No: CL-MMSN-16 CAS No: 1370190-55-8 Mol Wt: 535.5 Mol F: C28H32Cl2O6 Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-11?hydroxy-6a,16a-dimethyl-3,20-dioxopregna-1,4-dien-17-yl furan-2-carboxylate

Mometasone EP Impurity K

CAT No: CL-MMSN-17 CAS No: 4647-20-5 Mol Wt: 408.9 Mol F: C22H29ClO5 Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-11?17,21-trihydroxy-16a-methylpregna-1,4-diene-3,20-dione

Mometasone EP Impurity L

CAT No: CL-MMSN-18 CAS No: 24916-90-3 Mol Wt: 372.5 Mol F: C22H28O5 Inv Status: Custom Synthesis

Chemical Name: 9,11?Epoxy-17,21-dihydroxy-16a-methyl-9?pregna-1,4-diene-3,20-dione

Mometasone EP Impurity M

CAT No: CL-MMSN-19 CAS No: 57780-86-6 Mol Wt: 392.9 Mol F: C22H29ClO4 Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-11?17-dihydroxy-16a-methylpregna-1,4-diene-3,20-dione

Mometasone EP Impurity N

CAT No: CL-MMSN-20 CAS No: 352315-75-4 Mol Wt: 487 Mol F: C23H31ClO7S Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-11?17-dihydroxy-16a-methyl-3,20-dioxopregna-1,4-dien-21-yl methanesulfonate

Mometasone EP Impurity O

CAT No: CL-MMSN-21 CAS No: 24916-91-4 Mol Wt: 451 Mol F: C24H31ClO6 Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-11?17-dihydroxy-16a-methyl-3,20-dioxopregna-1,4-dien-21-yl acetate

Mometasone EP Impurity P

CAT No: CL-MMSN-22 CAS No: NA Mol Wt: 503 Mol F: C27H31ClO7 Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-11?17-dihydroxy-16a-methyl-3,20-dioxopregna-1,4-dien-21-yl furan-2-carboxylate

Mometasone EP Impurity Q

CAT No: CL-MMSN-23 CAS No: 83881-08-7 Mol Wt: 390.9 : Mol F: C22H27ClO4 Inv Status: Custom Synthesis

Chemical Name: 21-Chloro-9,11?epoxy-17-hydroxy-16a-methyl-9?pregna-1,4-diene-3,20-dione

Mometasone EP Impurity R

CAT No: CL-MMSN-24 CAS No: NA Mol Wt: 581.1 Mol F: C28H33ClO9S Inv Status: Custom Synthesis

Chemical Name: 9-Chloro-11?hydroxy-21-[(methanesulfonyl)oxy]-16a-methyl-3,20-dioxopregna-1,4-dien-17-yl furan-2-carboxylate

Mometasone EP Impurity S

CAT No: CL-MMSN-25 CAS No: NA Mol Wt: 521.4 Mol F: C27H30Cl2O6 Inv Status: Custom Synthesis

Chemical Name: 9,21-Dichloro-11?hydroxy-16?methyl-3,20-dioxopregna-1,4-dien-17-yl furan-2-carboxylate

Mometasone Impurity 1

CAT No: CL-MMSN-27 CAS No: NA Mol Wt: 393.9 Mol F: C22H29ClO4 Inv Status: Custom Synthesis

Chemical Name: (8S,10R,11S,13S,14S,16R,17R)-17-(2-Chloroacetyl)-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one

Mometasone EP Impurity T

CAT No: CL-MMSN-28 CAS No: NA Mol Wt: 555.9 Mol F: C27H29Cl3O6 Inv Status: Custom Synthesis

Chemical Name: (8S,9R,10S,11S,13S,14S,16R,17R)-9-chloro-17-(2-chloroacetyl)-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl 5-chlorofuran-2-carboxylate

Mometasone Impurity 3

CAT No: CL-MMSN-29 CAS No: NA Mol Wt: 356.5 Mol F: C22H28O4 Inv Status: Custom Synthesis

Chemical Name: (4aS,4bS,5aS,6aS,7R,8R,9aS,9bS)-7-Acetyl-7-hydroxy-4a,6a,8-trimethyl-5a,6,6a,7,8,9,9a,9b,10,11-decahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-2(4aH)-one

Mometasone Impurity 4

CAT No: CL-MMSN-30 CAS No: NA Mol Wt: 466.5 Mol F: C27H30O7 Inv Status: Custom Synthesis

Chemical Name: 2-((4aS,4bS,5aS,6aS,7R,8R)-7-hydroxy-4a,6a,8-trimethyl-2-oxo-2,4a,5a,6,6a,7,8,9,9a,9b,10,11-dodecahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-7-yl)-2-oxoethyl furan-2-carboxylate

Mometasone Impurity 5

CAT No: CL-MMSN-31 CAS No: NA Mol Wt: 501 Mol F: C27H29ClO7 Inv Status: Custom Synthesis

Chemical Name: (9R,10S,11S,13S,16R,17R)-9-chloro-11-hydroxy-10,13,16-trimethyl-3-oxo-17-(2-oxoacetyl)-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl furan-2-carboxylate

Mometasone Impurity 6

CAT No: CL-MMSN-32 CAS No: 201601-32-3 Mol Wt: 526.6 Mol F: C29H34O7S Inv Status: Custom Synthesis

Chemical Name: 2-((4aS,4bS,5aS,6aS,7R,8R,9aS,9bS)-7-hydroxy-4a,6a,8-trimethyl-2-oxo-2,4a,5a,6,6a,7,8,9,9a,9b,10,11-dodecahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-7-yl)-2-oxoethyl 4-methylbenzenesulfonate

Mometasone Impurity 7

CAT No: CL-MMSN-33 CAS No: 83880-66-4 Mol Wt: 539.9 Mol F: C27H29Cl3O5 Inv Status: Custom Synthesis

Chemical Name: (8S,9R,10S,11S,13S,14S,16R,17R)-9,11-dichloro-17-(2-chloroacetyl)-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl furan-2-carboxylate

Mometasone Impurity 8

CAT No: CL-MMSN-34 CAS No: NA Mol Wt: 709.6 Mol F: C37H34Cl2O10 Inv Status: Custom Synthesis

Chemical Name: (9R,10S,11S,13S,16R,17R)-9-chloro-17-((E)-2-chloro-1-((furan-2-carbonyl)oxy)vinyl)-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-11,17-diyl bis(furan-2-carboxylate)

Mometasone Impurity 9

CAT No: CL-MMSN-35 CAS No: NA Mol Wt: 521.4 Mol F: C27H30Cl2O6 Inv Status: Custom Synthesis

Chemical Name: (8S,9S,10S,11R,13S,14S,16R,17R)-11-Chloro-17-(2-chloroacetyl)-9-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl furan-2-carboxylate

Mometasone Impurity 10

CAT No: CL-MMSN-36 CAS No: NA Mol Wt: 485 Mol F: C27H29ClO6 Inv Status: Custom Synthesis

Chemical Name: (4aS,4bS,5aS,6aS,7R,8R,9aS,9bS)-7-(2-chloroacetyl)-4a,6a,8-trimethyl-2-oxo-2,4a,5a,6,6a,7,8,9,9a,9b,10,11-dodecahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-7-yl furan-2-carboxylate

Mometasone Furoate-D3

CAT No: CL-MMSN-37 CAS No: NA Mol Wt: 524.5 Mol F: C27H27D3Cl2O6 Inv Status: Custom Synthesis

Mometasone Furoate-D8

CAT No: CL-MMSN-38 CAS No: NA Mol Wt: 529.5 Mol F: C27H22D8Cl2O6 Inv Status: Custom Synthesis

Chemical Name: (8S,9R,10S,11S,13S,14S,16R,17R)-9-Chloro-17-(2-chloroacetyl-d2)-11-hydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-17-yl-4,6,6-d3 furan-2-carboxylate-d3

Mometasone-D6

CAT No: CL-MMSN-39 CAS No: NA Mol Wt: 433.4 Mol F: C22H22D6Cl2O4 Inv Status: Custom Synthesis

Chemical Name: (8S,9R,10S,11S,13S,14S,16R,17R)-9-Chloro-17-(2-chloroacetyl-d2)-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one-2,4,6,6-d4

Type:Impurity Reference Standard

Total Products: 38

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