2- degrees +/->>u-4-oC>>u-6,7- paragraph signthorn(1/4)x>>u-5,6,7,8-EACamicroua currency 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine 2-amino-6,7-dimethyl-5,6,7,8-tetrahydropteridin-4-ol hydrochloride 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride 945-43-7 DMPH4 CAS 945-43-7

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2- degrees +/->>u-4-oC>>u-6,7- paragraph signthorn(1/4)x>>u-5,6,7,8-EACamicroua currency 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine 2-amino-6,7-dimethyl-5,6,7,8-tetrahydropteridin-4-ol hydrochloride 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride 945-43-7 DMPH4.

2- degrees +/->>u-4-oC>>u-6,7- paragraph signthorn(1/4)x>>u-5,6,7,8-EACamicroua currency 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine 2-amino-6,7-dimethyl-5,6,7,8-tetrahydropteridin-4-ol hydrochloride 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride 945-43-7 DMPH4 (CAS 945-43-7), molecular formula C8H19N5OHCl and molecular weight 237.73 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 2- degrees +/->>u-4-oC>>u-6,7- paragraph signthorn(1/4)x>>u-5,6,7,8-EACamicroua currency 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine 2-amino-6,7-dimethyl-5,6,7,8-tetrahydropteridin-4-ol hydrochloride 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride 945-43-7 DMPH4 (C8H19N5OHCl) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

As a certified reference material (CRM), 2- degrees +/->>u-4-oC>>u-6,7- paragraph signthorn(1/4)x>>u-5,6,7,8-EACamicroua currency 2-Amino-6,7-dimethyl-4-hydroxy-5,6,7,8-tetrahydropteridine 2-amino-6,7-dimethyl-5,6,7,8-tetrahydropteridin-4-ol hydrochloride 6,7-Dimethyl-5,6,7,8-tetrahydropterine hydrochloride 945-43-7 DMPH4 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

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