Penicillin G Procaine

HCID 5903CAS 54-35-3

Basic information

Standard SMILES
CC1(C)S[C@@H]2[C@H](NC(=O)Cc3ccccc3)C(=O)N2[C@H]1C(=O)O.CCN(CC)CCOC(=O)c1ccc(N)cc1
InChIKey
WHRVRSCEWKLAHX-LQDWTQKMSA-N
Molecular formula
C29H38N4O6S
Average molar mass
570.7 g/mol
Monoisotopic mass
570.25120594

Overview

Procaine benzylpenicillin (INN), also known as procaine G penicillin, is an injectable antiobiotic. It is a poorly soluble salt form of penicillin which is a combination of naturally occuring benzylpenicillin (penicillin G) and the local anaesthetic agent procaine in equimolar amounts. Procaine benzylpenicillin is administered by deep intramuscular injection. It is slowly absorbed and hydrolyzed to benzylpenicillin. This drug is used where prolonged exposure to benzylpenicillin at a low concentration is required. This combination is aimed at reducing the pain and discomfort associated with a large intramuscular injection of penicillin. It is widely used in veterinary settings. Benzylpenicillin is active against a wide range of organisms and is the drug of first choice for many infections.

Names & identifiers

Preferred name
Penicillin G Procaine
IUPAC
2-(diethylamino)ethyl 4-aminobenzoate;(2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
English name
Procaine penicillin G
Molecular formula
C16H18N2O4S.C13H20N2O2
Molecular weight
570.7

Names & synonyms

Procaine penicillin GProcaine BenzylpenicillinDepocillinDuphapenHostacillinHydracillinNopcaineRetardillinVitablendVetspenJenacillin OMicro-Pen
Show more names
PENICILLIN G PROCAINEbenzylpenicillin procaineBenzyl Pencillin Procainerocaine penicillin
Penicillin procainePenzal N 300Procaine benzylpenicillinateBenzylpenicillin novocaine saltPenicillin procaine (anhydrous)Benzilpenillina procainicaUNII-1LW5K9CIR1EINECS 200-205-7

Database identifiers

CAS
54-35-3
PubChem CID
5903
DTXSID
DTXSID30883227
ChEMBL
CHEMBL1200936、CHEMBL1628385
UNII
1LW5K9CIR1

Properties

Computed structural properties

Topological polar surface area
168 Ų
Hydrogen bond donors
3
Hydrogen bond acceptors
9
Rotatable bonds
11
Heavy atoms
40

Experimental & physicochemical properties

SolubilitySlightly soluble
Human Drugs · 4 items

Breast Feeding; Lactation; Milk, Human; Anti-Infective Agents; Antibacterial Agents; Penicillins

FDA approved drugs -> Active ingredient

FDA approved drugs -> Active ingredient

Access group antibiotics

Animal Drugs · 2 items

Active Ingredients (Penicillin G Procaine) -> FDA Greenbook

Pharmaceuticals -> UK Veterinary Medicines Directorate List

Physicochemical properties

Melting point
129 · 129-130 °C
Density
1.1335 · 1.1335 (rough estimate)
refractive index
1.6 · 1.6000 (estimate)
storage temp.
-20 °C · Store at -20°C
solubility
100 mg/mL · DMSO: 100 mg/mL (175.22 mM);Ethanol: 20 mg/mL (35.04 mM)
Water Solubility
10 mg/mL · Water: 10 mg/mL (17.52 mM)

Safety & regulation

Hazard information

Other Safety InformationIMAP assessments - 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-[(phenylacetyl)amino]- [2S-(2.alpha.,5.alpha.,6.beta.)]-, compound with 2-(diethylamino)ethyl 4-aminobenzoate (1:1): Environment tier I assessment

Toxicology

Effects During Pregnancy and Lactation◉ Summary of Use during Lactation

Safety data

tsca
TSCA listed
Toxicity
LD50 orl-rat: >2 g/kg ABANAE 3,534,55/56
Signal word
Warning
Symbol(GHS)
GHS07
Hazard statements
H302-H315-H319-H335
Precautionary statements
P261-P305+P351+P338

Chemistry & industry

Pharmacology

ATC Code · 4 items

J - Antiinfectives for systemic use

QJ - Antiinfectives for systemic use

QJ - Antiinfectives for systemic use

J01CE09

Protein BindingApproximately 60% of penicillin G is bound to serum protein.
Pharmacodynamics · 1 item

It is an antibiotic against penicillin-susceptible microorganisms with bactericidal effect. Like all penicillins, procaine benzylpenicillin interferes with the synthesis of the bacterial cell wall peptidoglycan. It acts through the inhibition of biosynthesis of cell-wall peptidoglycan, rendering the cell wall osmotically unstable. It is part of the penicillin and beta lactam family of antibacterial drugs.

Mechanism of Action · 1 item

Procaine benzylpenicillin is hydrolyzed into penicillin G once it is released from the injection site. Penicillin G attaches to the penicillin-binding proteins on bacterial cell wall and inhibit the transpeptidation enzyme that crosslinks the peptide chains attached to the backbone of the peptidoglycan. The final bactericidal event involves the inactivation of an inhibitor of autolytic enzymes in the cell wall, leading to lysis of the bacterium.

Biological Half-LifeIntramuscular injection of benzylpenicillin has a plasma half-life of 30 minutes.
Metabolism/MetabolitesProcaine is rapidly hydrolyzed by plasma esterases to nontoxic metabolites.

Uses & manufacturing

Use Classification · 3 items

Animal Drugs -> FDA Approved Animal Drug Products (Green Book) -> Active Ingredients

Veterinary Drug -> ANTIMICROBIAL_AGENT -> JECFA Functional Classes

Veterinary Drug -> ANTIMICROBIAL_AGENT -> JECFA Functional Classes

General Manufacturing Information4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]- (2S,5R,6R)-, compd. with 2-(diethylamino)ethyl 4-aminobenzoate (1:1): ACTIVE
Applications · 2 items

UsesAntibacterial.

General DescriptionThe first widely used amine salt of penicillin G wasmade with procaine. Penicillin G procaine (Crysticillin,Duracillin, Wycillin) can be made readily from penicillin Gsodium by treatment with procaine hydrochloride. This saltis considerably less soluble in water than the alkali metalsalts, requiring about 250 mL to dissolve 1 g. Free penicillinis released only as the compound dissolves and dissociates.It has an activity of 1,009 units/mg. A large number ofpreparations for injection of penicillin G procaine are commerciallyavailable. Most of these are either suspensions inwater to which a suitable dispersing or suspending agent, a buffer, and a preservative have been added or suspensions inpeanut oil or sesame oil that have been gelled by theaddition of 2% aluminum monostearate. Some commercialproducts are mixtures of penicillin G potassium or sodiumwith penicillin G procaine; the water-soluble salt providesrapid development of a high plasma concentration of penicillin,and the insoluble salt prolongs the duration of effect.

Suppliers50 total

医格尔(上海)药业有限公司+86-2160290089 +86-13884467586 · [email protected]
成都超九八生物科技有限公司13348960310 13348960310 · [email protected]
Hebei baicao biology science and technology co., ltd+86-19131911055 17824879454 · [email protected]
HubeiwidelychemicaltechnologyCo.,Ltd18627774460 · [email protected]
山东雨禾医药科技有限公司15263077727

Related reactions

1 records

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