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Screening compounds

Prazocillin

Also known as Pyrazocillin, Prazocilline, Prazocilina

CAS 15949-72-1Formula C19H18Cl2N4O4SMolar mass 469.35 g/mol
1 supplier listed
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Prazocillin chemical structure, C19H18Cl2N4O4S, CAS 15949-72-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
15949-72-1
Formula
C19H18Cl2N4O4S
Molar mass
469.35 g/mol
HS code
294110
Category
Screening compounds

What is Prazocillin?

Plain description, key identifiers and synonyms

Prazocillin is a chemical substance with the molecular formula C19H18Cl2N4O4S and a molar mass of 469.35 g/mol. Its CAS registry number is 15949-72-1. The IUPAC name is (2S,5R,6R)-6-[[1-(2,6-dichlorophenyl)-4-methylpyrazole-5-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S,5R,6R)-6-[[1-(2,6-dichlorophenyl)-4-methylpyrazole-5-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
CAS number
15949-72-1 CAS number cross-checked
Molecular formula
C19H18Cl2N4O4S
UNII
IRZ1462XXF
InChIKey
XRCKXULNIUSXFZ-HYSWKAIVSA-N
InChI
InChI=1S/C19H18Cl2N4O4S/c1-8-7-22-25(13-9(20)5-4-6-10(13)21)12(8)15(26)23-11-16(27)24-14(18(28)29)19(2,3)30-17(11)24/h4-7,11,14,17H,1-3H3,(H,23,26)(H,28,29)/t11-,14+,17-/m1/s1
Canonical SMILES
Cc1cnn(-c2c(Cl)cccc2Cl)c1C(=O)NC1C(=O)N2C1SC(C)(C)C2C(=O)O
Isomeric SMILES
CC1=C(N(N=C1)C2=C(C=CC=C2Cl)Cl)C(=O)N[C@H]3[C@@H]4N(C3=O)[C@H](C(S4)(C)C)C(=O)O

Synonyms

  • Pyrazocillin
  • Prazocilline
  • Prazocilina
  • Prazocillinum
  • 1-(2,6-dichlorophenyl)-4-methyl-5-pyrazolylpenicillin
  • 6alpha-((1-(2,6-Dichlorophenyl)-4-methyl-1H-pyrazol-5-yl)carbonylamino)penicillanic acid
  • Pirazocillin
  • Pyrasocillin
  • (2S,5R,6R)-6-[[2-(2,6-dichlorophenyl)-4-methylpyrazole-3-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • 1-(2,6-Dichlorphenyl)-4-methyl-5-pyrasolyl penicillin
  • 1-(2,6-Dichlorophenyl)-4-methyl-5-pyrazolyl penicillin
  • (2S,5R,6R)-6-[[[1-(2,6-Dichlorophenyl)-4-methyl-1H-pyrazol-5-yl]carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • (2S,5R,6R)-6-[[1-(2,6-dichlorophenyl)-4-methylpyrazole-5-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
  • 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[[1-(2,6-dichlorophenyl)-4-methyl-1H-pyrazol-5-yl]carbonyl]amino]-3,3-dimethyl-7-oxo-, (2S,5R,6R)-
  • 6-(1-(2,6-Dichlorophenyl)-4-methylpyrazole-5-carboxamido)-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid

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
469.35 g/molcalc.
Exact mass
468.0426 Dacalc.
LogP (octanol/water)
2.73calc.
Topological polar surface area
104.5 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
4calc.
Heavy atoms
30calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.37calc.
Formal charge
0calc.
Stereocentres
3calc.
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=C(NC1C(=O)N2CCSC12)c1ccnn1-c1ccccc1

O=C(NC1C(=O)N2CCSC12)c1ccnn1-c1ccccc1

4 rings, 22 atoms.

No other chemical in our database has 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.

Prazocillin suppliers

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Where suppliers are based

1 supplier in 0 countries

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Prazocillin 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 Prazocillin is traded under.

HS 2941.10Indicative HS code

Penicillins and their derivatives with a penicillanic acid structure, salts thereof

World exports in 2024
$1.66B
−2.5% vs 2023, imports $1.63B
2019 to 2024
Top exporters
  1. China56.8%
  2. Spain13.1%
  3. India * partner reported7.7%
Top importers
  1. India * partner reported16.4%
  2. Austria9.3%
  3. Brazil5.4%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Prazocillin?

Prazocillin is a chemical substance with the molecular formula C19H18Cl2N4O4S and a molar mass of 469.35 g/mol. Its CAS registry number is 15949-72-1. The IUPAC name is (2S,5R,6R)-6-[[1-(2,6-dichlorophenyl)-4-methylpyrazole-5-carbonyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid.

What is the CAS number of Prazocillin?

The CAS registry number of Prazocillin is 15949-72-1.

What is the molecular formula and weight of Prazocillin?

The molecular formula of Prazocillin is C19H18Cl2N4O4S and its molar mass is 469.35 g/mol.

What is Prazocillin used for?

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

Is Prazocillin hazardous?

No GHS hazard classification for Prazocillin 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 Prazocillin?

Prazocillin is usually classified under HS code 294110 (Penicillins and their derivatives with a penicillanic acid structure, salts thereof). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Prazocillin?

CompoundList lists 1 supplier of Prazocillin. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Prazocillin?

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

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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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