903A9K181P 7248-21-7 Iprazochrome [INN] Iprazochrome Hydrazinecarboxamide, 2-(3-hydroxy-1-(1-methylethyl)-6-oxo-1,2,3,6-tetrahydro-5H-indol-5-ylidene)- Hydrazinecarboxamide, 2-(1,2,3,6-tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)- (9CI) 3-Hydroxy-1-isopropyl-5,6-indolinedione 5-semicarbazone 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone (8CI) 2-(1,2,3,6-Tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)hydrazinecarboxamide Divascan 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone Iprazochromum [INN-Latin] Iprazocromo [INN-Spanish] ISI 1-Isopropyl-3-hydroxy-5-semicarbazone-6-oxo-2,3,5,6-tetrahydroindole Isopropylnoradenochrome monosemicarbazone Isopropylnoradrenochrome monosemicarbazone Novochrome NSC 10065 Iprazochromum Iprazocromo UNII-903A9K181P CAS 7248-21-7

Purity 97%+In StockPharmaceutical Standards
CAS No.7248-21-7
Molecular FormulaC12H16N4O3
Molecular Weight264.28 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

903A9K181P 7248-21-7 Iprazochrome [INN] Iprazochrome Hydrazinecarboxamide, 2-(3-hydroxy-1-(1-methylethyl)-6-oxo-1,2,3,6-tetrahydro-5H-indol-5-ylidene)- Hydrazinecarboxamide, 2-(1,2,3,6-tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)- (9CI) 3-Hydroxy-1-isopropyl-5,6-indolinedione 5-semicarbazone 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone (8CI) 2-(1,2,3,6-Tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)hydrazinecarboxamide Divascan 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone Iprazochromum [INN-Latin] Iprazocromo [INN-Spanish] ISI 1-Isopropyl-3-hydroxy-5-semicarbazone-6-oxo-2,3,5,6-tetrahydroindole Isopropylnoradenochrome monosemicarbazone Isopropylnoradrenochrome monosemicarbazone Novochrome NSC 10065 Iprazochromum Iprazocromo UNII-903A9K181P CAS 7248-21-7 chemical structure

Description

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO supplies 903A9K181P 7248-21-7 Iprazochrome [INN] Iprazochrome Hydrazinecarboxamide, 2-(3-hydroxy-1-(1-methylethyl)-6-oxo-1,2,3,6-tetrahydro-5H-indol-5-ylidene)- Hydrazinecarboxamide, 2-(1,2,3,6-tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)- (9CI) 3-Hydroxy-1-isopropyl-5,6-indolinedione 5-semicarbazone 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone (8CI) 2-(1,2,3,6-Tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)hydrazinecarboxamide Divascan 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone Iprazochromum [INN-Latin] Iprazocromo [INN-Spanish] ISI 1-Isopropyl-3-hydroxy-5-semicarbazone-6-oxo-2,3,5,6-tetrahydroindole Isopropylnoradenochrome monosemicarbazone Isopropylnoradrenochrome monosemicarbazone Novochrome NSC 10065 Iprazochromum Iprazocromo UNII-903A9K181P (CAS 7248-21-7), a certified reference material (molecular formula C12H16N4O3, MW 264.28 g/mol) for analytical method development and quality control.

The molecular framework of 903A9K181P 7248-21-7 Iprazochrome [INN] Iprazochrome Hydrazinecarboxamide, 2-(3-hydroxy-1-(1-methylethyl)-6-oxo-1,2,3,6-tetrahydro-5H-indol-5-ylidene)- Hydrazinecarboxamide, 2-(1,2,3,6-tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)- (9CI) 3-Hydroxy-1-isopropyl-5,6-indolinedione 5-semicarbazone 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone (8CI) 2-(1,2,3,6-Tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)hydrazinecarboxamide Divascan 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone Iprazochromum [INN-Latin] Iprazocromo [INN-Spanish] ISI 1-Isopropyl-3-hydroxy-5-semicarbazone-6-oxo-2,3,5,6-tetrahydroindole Isopropylnoradenochrome monosemicarbazone Isopropylnoradrenochrome monosemicarbazone Novochrome NSC 10065 Iprazochromum Iprazocromo UNII-903A9K181P (C12H16N4O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

CATO manufactures 903A9K181P 7248-21-7 Iprazochrome [INN] Iprazochrome Hydrazinecarboxamide, 2-(3-hydroxy-1-(1-methylethyl)-6-oxo-1,2,3,6-tetrahydro-5H-indol-5-ylidene)- Hydrazinecarboxamide, 2-(1,2,3,6-tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)- (9CI) 3-Hydroxy-1-isopropyl-5,6-indolinedione 5-semicarbazone 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone (8CI) 2-(1,2,3,6-Tetrahydro-3-hydroxy-1-(1-methylethyl)-6-oxo-5H-indol-5-ylidene)hydrazinecarboxamide Divascan 5,6-Indolinedione, 3-hydroxy-1-isopropyl-, 5-semicarbazone Iprazochromum [INN-Latin] Iprazocromo [INN-Spanish] ISI 1-Isopropyl-3-hydroxy-5-semicarbazone-6-oxo-2,3,5,6-tetrahydroindole Isopropylnoradenochrome monosemicarbazone Isopropylnoradrenochrome monosemicarbazone Novochrome NSC 10065 Iprazochromum Iprazocromo UNII-903A9K181P under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC12H16N4O3
Molecular Weight264.28 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Nitrogen Atoms4

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