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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Semicarbazide, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Semicarbazide impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Semicarbazide-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Semicarbazide Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-NP-SCA-13C Stable Isotopes CS-W-00157 957509-32-9 In Stock
SCA-Hydrochloride-13C Stable Isotopes CS-W-00149 1173020-16-0 In Stock
Semicarbazide 13C,15N2 Hydrochloride Stable Isotopes CS-BX-03070 1173020-16-0 Enquire


API Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Semicarbazide API Standards CS-O-16187 57-56-7 In Stock
Semicarbazide Hydrochloride API Standards CS-T-42229 563-41-7 In Stock
Thiosemicarbazide API Standards CS-T-26428 79-19-6 Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"1,4-Dibenzoyl-3-thio-semicarbazide" Impurities CS-T-88249 58975-55-6 Enquire
N-Nitroso Semicarbazide Impurities CS-O-42671 Not Available Enquire
Posaconazole Formyl Semicarbazide Analog Impurities CS-EO-03127 1350560-57-4 Enquire
Posaconazole semicarbazide analog Impurities CS-O-47836 Not Available Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"1-(2-(2,4-dichlorophenoxy)propionyl)-4-(3-(trifluoromethyl)... Intermediates CS-EL-17879 894955-04-5 Enquire
"1-(2-(2,4-dichlorophenoxy)propionyl)-4-(4-methylphenyl)thio... Intermediates CS-EL-08749 894576-34-2 Enquire
"1-(2-(2,4-Dichlorophenoxy)propionyl)-4-benzylthiosemicarbaz... Intermediates CS-EL-09395 288154-62-1 Enquire
"1-(2-(benzo[3,4-d]1,3-dioxolan-5-ylamino)acetyl)-4-methylth... Intermediates CS-EL-31892 303090-88-2 Enquire
"4-[3,5-Di(trifluoromethyl)phenyl]-3-thiosemicarbazide" Intermediates CS-M-42178 38901-31-4 Enquire
"5-bromoisatin, 3-thiosemicarbazide" Intermediates CS-EL-08329 1346414-05-8 Enquire
1-(2-(2,2-Dimethyl(3-oxaindan-4-yloxy))acetyl)-4-(2-methylph... Intermediates CS-ED-25805 1022319-72-7 Enquire
1-(2-(2,2-Dimethyl(3-oxaindan-4-yloxy))acetyl)-4-(4-chloroph... Intermediates CS-ED-25804 1024240-47-8 Enquire
1-(2-(3-chlorophenyl)acetyl)-4-phenylthiosemicarbazide Intermediates CS-EL-20988 1023505-32-9 Enquire
1-(2-(4-chloro-2-methylphenoxy)acetyl)-4-(4-chlorophenyl)thi... Intermediates CS-EL-01432 893327-61-2 Enquire
1-(2-(4-Ethylphenoxy)acetyl)-4-((4-methylphenyl)sulfonyl)sem... Intermediates CS-ED-28217 1024439-41-5 Enquire
1-(2-(benzothiazol-2-ylthio)acetyl)-4-(4-chlorophenyl)semica... Intermediates CS-EL-00787 155820-98-7 Enquire
1-(2-benzimidazol-2-ylthioacetyl)-4-phenylthiosemicarbazide Intermediates CS-EL-30761 62638-88-4 Enquire
1-(2-chlorobenzoyl)-4-phenyl-3-thiosemicarbazide Intermediates CS-EL-19322 26036-04-4 Enquire
2,4-Dimethylthiosemicarbazide Intermediates CS-ED-05497 6621-75-6 Enquire
2-Methyl-3-thiosemicarbazide Intermediates CS-ED-06009 6938-68-7 Enquire
4-(1-Adamantyl)-3-thiosemicarbazide Intermediates CS-ED-39733 52662-65-4 Enquire
4-(2-Furfuryl)-3-thiosemicarbazide Intermediates CS-ED-30209 96860-19-4 Enquire
4-[3-(Trifluoromethyl)phenyl]-3-thiosemicarbazide Intermediates CS-M-41756 20069-30-1 Enquire
4-[4-(Trifluoromethyl)phenyl]-3-thiosemicarbazide Intermediates CS-M-41757 206761-90-2 Enquire
4-[4-Chloro-3-(trifluoromethyl)phenyl]-3-thiosemicarbazide Intermediates CS-M-41751 38901-30-3 Enquire
4-Allyl-3-thiosemicarbazide Intermediates CS-M-42012 3766-55-0 Enquire
4-Benzhydryl-3-thiosemicarbazide Intermediates CS-M-41807 21198-25-4 Enquire
4-benzyl-1-(thiophene-2-carbonyl)thiosemicarbazide Intermediates CS-EL-04743 139614-66-7 Enquire
4-Benzyl-3-thiosemicarbazide Intermediates CS-M-41817 13431-41-9 Enquire
4-Benzylsemicarbazide Intermediates CS-ED-03947 16956-42-6 Enquire
4-Butyl-3-thiosemicarbazide Intermediates CS-M-41830 6610-31-7 Enquire
4-Cyclohexyl-3-thiosemicarbazide Intermediates CS-M-41857 21198-18-5 Enquire
4-Ethyl-3-thiosemicarbazide Intermediates CS-M-42197 13431-34-0 Enquire
4-Isopropyl-3-thiosemicarbazide Intermediates CS-M-41902 13431-36-2 Enquire
4-Methyl-3-thiosemicarbazide Intermediates CS-M-42260 6610-29-3 Enquire
4-Octyl-3-thiosemicarbazide Intermediates CS-M-41941 13207-36-8 Enquire
4-tert-Butyl-3-thiosemicarbazide Intermediates CS-M-42070 13431-39-5 Enquire
Rhodamine-6G N-Phenyl-thiosemicarbazide Intermediates CS-T-41748 885481-03-8 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Methylsemicarbazide hydrochloride Fine Chemicals CS-O-39559 4140-62-9 Enquire