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Heterocyclic building blocks

Aptazapine

Also known as Aptazapina, Aptazapinum, CGS-7525A FREE BASE

CAS 71576-40-4Formula C16H19N3Molar mass 253.35 g/mol
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Aptazapine chemical structure, C16H19N3, CAS 71576-40-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
71576-40-4
Formula
C16H19N3
Molar mass
253.35 g/mol
HS code
293359
Category
Heterocyclic building blocks

What is Aptazapine?

Plain description, key identifiers and synonyms

Aptazapine is a chemical substance with the molecular formula C16H19N3 and a molar mass of 253.35 g/mol. Its CAS registry number is 71576-40-4. The IUPAC name is 17-methyl-6,14,17-triazatetracyclo[12.4.0.02,6.08,13]octadeca-2,4,8,10,12-pentaene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
17-methyl-6,14,17-triazatetracyclo[12.4.0.02,6.08,13]octadeca-2,4,8,10,12-pentaene
CAS number
71576-40-4 CAS number cross-checked
Molecular formula
C16H19N3
UNII
240J927J1R
InChIKey
MNHDDERDSNZCCK-UHFFFAOYSA-N
InChI
InChI=1S/C16H19N3/c1-17-9-10-19-14-6-3-2-5-13(14)11-18-8-4-7-15(18)16(19)12-17/h2-8,16H,9-12H2,1H3
SMILES (canonical and isomeric)
CN1CCN2C(C1)C3=CC=CN3CC4=CC=CC=C42

Synonyms

  • Aptazapina
  • Aptazapinum
  • CGS-7525A FREE BASE
  • 1,3,4,14b-tetrahydro-2-methyl-10H-pyrazino-(1,2-a)pyrrolo(2,1-c)(1,4)benzodiazepine
  • 2H,10H-Parazino(1,2-a)pyrrolo(2,1-c)(1,4)benzodiazepine,1,3,4,14b-tetrahydro-2-methyl-
  • 17-methyl-6,14,17-triazatetracyclo(12.4.0.02,?.0?,13)octadeca-2,4,8(13),9,11-pentaene
  • 17-methyl-6,14,17-triazatetracyclo[12.4.0.02,6.08,13]octadeca-2,4,8,10,12-pentaene
  • Aptazap
  • CGS 7525 A
  • 2-Methyl-1,3,4,14b-tetrahydro-2H,10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine
  • 2-methyl-1,2,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4 ]benzodiazepine
  • 2-methyl-1,3,4,14b-tetrahydro-10H--pyrazino[1,2-a]pyrrolo[2,1-c][1,4]-benzodiazepine
  • 2-methyl-1,3,4,14b-tetrahydro-10H--pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine
  • 2-methyl-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][ 1,4]benzodiazepine
  • 2-methyl-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]-benzodiazepine
  • 2-methyl-1,3,4,14b-tetrahydro-10H-pyrazino[1,2-a]pyrrolo[2,1-c][1,4]benzodiazepine
  • (+/-)-1,3,4,14B-tetrahydro-2-methyl-2H,10H-pyrazino(1,2-a)pyrrolo(2,1-c)(1,4)benzodiazepine
  • 2H,10H-Parazino(1,2-a)pyrrolo(2,1-c)(1,4)benzodiazepine, 1,3,4,14b-tetrahydro-2-methyl-
  • 2H,10H-Pyrazino(1,2-a)pyrrolo(2,1-c)(1,4)benzodiazepine, 1,3,4,14b-tetrahydro-2-methyl-, (+/-)-

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
253.35 g/molcalc.
Exact mass
253.1579 Dacalc.
LogP (octanol/water)
2.34calc.
Topological polar surface area
11.41 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
19calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.38calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc2c(c1)Cn1cccc1C1CNCCN21

c1ccc2c(c1)Cn1cccc1C1CNCCN21

4 rings, 18 atoms.

5 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Aptazapine suppliers

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Aptazapine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Aptazapine is traded under.

HS 2933.59Indicative HS code

Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring, other

World exports in 2024
$18.4B
+10.5% vs 2023, imports $24.8B
2019 to 2024
Top exporters
  1. Ireland43.6%
  2. Switzerland * partner reported26.3%
  3. China7.9%
Top importers
  1. Slovenia30.3%
  2. United States30.1%
  3. Germany15.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Aptazapine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Aptazapine, based on the data on this page

What is Aptazapine?

Aptazapine is a chemical substance with the molecular formula C16H19N3 and a molar mass of 253.35 g/mol. Its CAS registry number is 71576-40-4. The IUPAC name is 17-methyl-6,14,17-triazatetracyclo[12.4.0.02,6.08,13]octadeca-2,4,8,10,12-pentaene.

What is the CAS number of Aptazapine?

The CAS registry number of Aptazapine is 71576-40-4.

What is the molecular formula and weight of Aptazapine?

The molecular formula of Aptazapine is C16H19N3 and its molar mass is 253.35 g/mol.

What is Aptazapine used for?

Known uses and roles of Aptazapine include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Aptazapine hazardous?

No GHS hazard classification for Aptazapine is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Aptazapine?

Aptazapine is usually classified under HS code 293359 (Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Aptazapine?

Post a free request on CompoundList and suppliers of Aptazapine will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Aptazapine?

Suppliers quote Aptazapine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Aptazapine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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