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Screening compounds

Clazuril

Also known as Clazurilo, Clazurilum, Benzeneacetonitrile, 2-chloro-alpha-(4-chlorophenyl)-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl)-

CAS 101831-36-1Formula C17H10Cl2N4O2Molar mass 373.20 g/mol
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Clazuril chemical structure, C17H10Cl2N4O2, CAS 101831-36-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
101831-36-1
Formula
C17H10Cl2N4O2
Molar mass
373.20 g/mol
HS code
293369
Category
Screening compounds

What is Clazuril?

Plain description, key identifiers and synonyms

Clazuril is a chemical substance with the molecular formula C17H10Cl2N4O2 and a molar mass of 373.20 g/mol. Its CAS registry number is 101831-36-1. The IUPAC name is 2-[2-chloro-4-(3,5-dioxo-1,2,4-triazin-2-yl)phenyl]-2-(4-chlorophenyl)acetonitrile.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[2-chloro-4-(3,5-dioxo-1,2,4-triazin-2-yl)phenyl]-2-(4-chlorophenyl)acetonitrile
CAS number
101831-36-1 CAS number cross-checked
Molecular formula
C17H10Cl2N4O2
UNII
O8W0R05772
InChIKey
QUUTUGLQZLNABV-UHFFFAOYSA-N
InChI
InChI=1S/C17H10Cl2N4O2/c18-11-3-1-10(2-4-11)14(8-20)13-6-5-12(7-15(13)19)23-17(25)22-16(24)9-21-23/h1-7,9,14H,(H,22,24,25)
SMILES (canonical and isomeric)
C1=CC(=CC=C1C(C#N)C2=C(C=C(C=C2)N3C(=O)NC(=O)C=N3)Cl)Cl

Synonyms

  • Clazurilo
  • Clazurilum
  • Benzeneacetonitrile, 2-chloro-alpha-(4-chlorophenyl)-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl)-
  • (+-)-(2-Chloro-4-(4,5-dihydro-3,5-dioxo-as-triazin-2(3H)-yl)phenyl)-(p-chlorophenyl)acetonitrile
  • 2-[2-chloro-4-(3,5-dioxo-1,2,4-triazin-2-yl)phenyl]-2-(4-chlorophenyl)acetonitrile
  • (2-Chloro-4-(4,5-dihydro-3,5-dioxo-as-triazin-2(3H)-yl)phenyl)(p-chlorophenyl)acetonitrile
  • (2RS)-[2-Chloro-4-(3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl](4-chlorophenyl)acetonitrile
  • Clazuril?
  • Clazuril CRS
  • Clazuril (USAN/INN)
  • (+/-)-Clazuril
  • Clazuril, (+/-)-
  • Clazuril for system suitability CRS
  • [2-chloro-4-(3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3h)-yl)phenyl](4-chlorophenyl)acetonitrile
  • 2-(2-chloro-4-(3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl)-2-(4-chlorophenyl)acetonitrile
  • Clazuril Solution in Methanol, 100ug/mL
  • Clazuril for veterinary use [EP monograph]
  • Clazuril Solution in Methanol, 1000ug/mL
  • 2-chloro-alpha-(4-chlorophenyl)-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl)benzeneacetonitrile
  • 2-chloro-alpha-(4-chlorophenyl)-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2-(3H)-yl)benzeneacetonitrile

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
373.20 g/molcalc.
Exact mass
372.0181 Dacalc.
LogP (octanol/water)
2.88calc.
Topological polar surface area
91.54 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
3calc.
Heavy atoms
25calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.06calc.
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, O=c1cnn(-c2ccc(Cc3ccccc3)cc2)c(=O)[nH]1

O=c1cnn(-c2ccc(Cc3ccccc3)cc2)c(=O)[nH]1

3 rings, 21 atoms.

18 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.

Clazuril suppliers

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Clazuril 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 Clazuril is traded under.

HS 2933.69Indicative HS code

Compounds containing an unfused triazine ring (whether or not hydrogenated) in the…

World exports in 2024
$2.46B
+1.8% vs 2023, imports $2.44B
2019 to 2024
Top exporters
  1. China53.6%
  2. Germany11.5%
  3. India * partner reported8.4%
Top importers
  1. United States13.5%
  2. Brazil9.6%
  3. Germany9.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Clazuril?

Clazuril is a chemical substance with the molecular formula C17H10Cl2N4O2 and a molar mass of 373.20 g/mol. Its CAS registry number is 101831-36-1. The IUPAC name is 2-[2-chloro-4-(3,5-dioxo-1,2,4-triazin-2-yl)phenyl]-2-(4-chlorophenyl)acetonitrile.

What is the CAS number of Clazuril?

The CAS registry number of Clazuril is 101831-36-1.

What is the molecular formula and weight of Clazuril?

The molecular formula of Clazuril is C17H10Cl2N4O2 and its molar mass is 373.20 g/mol.

What is Clazuril used for?

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

Is Clazuril hazardous?

No GHS hazard classification for Clazuril 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 Clazuril?

Clazuril is usually classified under HS code 293369 (Compounds containing an unfused triazine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Clazuril?

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

What is the price of Clazuril?

Suppliers quote Clazuril 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

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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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