Chemical identity

Terazosin EP Impurity I

CAS 1177261-85-6 · C20H27N5O4

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-29107
PubChem CID72941989
NameTerazosin EP Impurity I
CAS RN1177261-85-6
Molecular formulaC20H27N5O4
Molecular weight401.5 g/mol
IUPAC name1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS,5S)-5-methyltetrahydro furan-2-yl]carbonyl]piperazine
InChIKeyHKXGJHSYGLAWLN-SFVWDYPZSA-N

02Structure identifiers

2D structurePubChem CID 72941989
Two-dimensional chemical structure of Terazosin EP Impurity I, CAS 1177261-85-6
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon, has 1 defined stereocentre. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres1
Ring count4
Secondary amines0
Tertiary amines1
N-methyl amine sites0
SMILESC[C@H]1CCC(O1)C(=O)N2CCN(CC2)C3=NC4=CC(=C(C=C4C(=N3)N)OC)OC
InChINot listed
Formula from structureC20H27N5O4
Molecular weight from structure401.5 g/mol

03Stereochemistry

The published structure contains 1 defined and 1 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres1Structure assigned
Unassigned centres1Structure unspecified
Assignment statusPartially assignedExact published identity
Tetrahedral upper bound≤ 4Before symmetry reduction

Published same-connectivity configurations

2 records

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.

04India status for this compound

These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.

NDPS / RCSNO EXACT MATCH FOUNDCAS 1177261-85-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1177261-85-6 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Terazosin

View API and impurity family

Other names

  • Destetrahydrofuranyl-5-methyltetrahydrofuran-2-yl terazosin
  • 1177261-85-6
  • Terazosin EP Impurity I
  • (4-(4-Amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl)((5S)-5-methyltetrahydrofuran-2-yl)methanone
  • [4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-[(5S)-5-methyloxolan-2-yl]methanone
  • N0C166ET1K
  • [4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl][(5S)-tetrahydro-5-methyl-2-furanyl]methanone
  • 1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(((2RS,5S)-5-methyltetrahydrofuran-2-yl)carbonyl)piperazine
  • Methanone, (4-(4-amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl)((5S)-tetrahydro-5-methyl-2-furanyl)-
  • UNII-N0C166ET1K
  • Terazosin hydrochloride dihydrate impurity I [EP]
  • 6,7-dimethoxy-2-{4-[(5S)-5-methyloxolane-2-carbonyl]piperazin-1-yl}quinazolin-4-amine

Related records from the same parent family

06Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

07Sources