475-38-7 S9IX5I5C0K Naphthazarin 5,8-Dihydroxy-1,4-naphthoquinone 1,4-Naphthalenedione, 5,8-dihydroxy- (9CI) Naphthazarine 1,4-Naphthoquinone, 5,8-dihydroxy- CCRIS 6670 5,8-Dihydroxy-1,4-naphthalenedione 5,8-Dihydroxynaphthoquinone 5,8-Dihydroxy-1,4-naphthosemiquinone EINECS 207-495-4 Naphthazarone NSC 26647 UNII-S9IX5I5C0K CAS 475-38-7

Purity 97%+In StockPharmaceutical Standards
CAS No.475-38-7
Molecular FormulaC10H12O4
Molecular Weight196.20 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

475-38-7 S9IX5I5C0K Naphthazarin 5,8-Dihydroxy-1,4-naphthoquinone 1,4-Naphthalenedione, 5,8-dihydroxy- (9CI) Naphthazarine 1,4-Naphthoquinone, 5,8-dihydroxy- CCRIS 6670 5,8-Dihydroxy-1,4-naphthalenedione 5,8-Dihydroxynaphthoquinone 5,8-Dihydroxy-1,4-naphthosemiquinone EINECS 207-495-4 Naphthazarone NSC 26647 UNII-S9IX5I5C0K CAS 475-38-7 chemical structure

Description

475-38-7 S9IX5I5C0K Naphthazarin 5,8-Dihydroxy-1,4-naphthoquinone 1,4-Naphthalenedione, 5,8-dihydroxy- (9CI) Naphthazarine 1,4-Naphthoquinone, 5,8-dihydroxy- CCRIS 6670 5,8-Dihydroxy-1,4-naphthalenedione 5,8-Dihydroxynaphthoquinone 5,8-Dihydroxy-1,4-naphthosemiquinone EINECS 207-495-4 Naphthazarone NSC 26647 UNII-S9IX5I5C0K (CAS 475-38-7) is a high-purity analytical reference standard with the molecular formula C10H12O4 and a molecular weight of 196.20 g/mol.

The molecular framework of 475-38-7 S9IX5I5C0K Naphthazarin 5,8-Dihydroxy-1,4-naphthoquinone 1,4-Naphthalenedione, 5,8-dihydroxy- (9CI) Naphthazarine 1,4-Naphthoquinone, 5,8-dihydroxy- CCRIS 6670 5,8-Dihydroxy-1,4-naphthalenedione 5,8-Dihydroxynaphthoquinone 5,8-Dihydroxy-1,4-naphthosemiquinone EINECS 207-495-4 Naphthazarone NSC 26647 UNII-S9IX5I5C0K (C10H12O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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

As a certified reference material (CRM), 475-38-7 S9IX5I5C0K Naphthazarin 5,8-Dihydroxy-1,4-naphthoquinone 1,4-Naphthalenedione, 5,8-dihydroxy- (9CI) Naphthazarine 1,4-Naphthoquinone, 5,8-dihydroxy- CCRIS 6670 5,8-Dihydroxy-1,4-naphthalenedione 5,8-Dihydroxynaphthoquinone 5,8-Dihydroxy-1,4-naphthosemiquinone EINECS 207-495-4 Naphthazarone NSC 26647 UNII-S9IX5I5C0K meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC10H12O4
Molecular Weight196.20 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

Recommended Standards

Why CATO?