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Details

Stereochemistry ACHIRAL
Molecular Formula C13H17NO
Molecular Weight 203.2802
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 1
Charge 0

SHOW SMILES / InChI
Structure of CROTAMITON, (E)-

SMILES

CCN(C(=O)\C=C\C)C1=CC=CC=C1C

InChI

InChIKey=DNTGGZPQPQTDQF-XBXARRHUSA-N
InChI=1S/C13H17NO/c1-4-8-13(15)14(5-2)12-10-7-6-9-11(12)3/h4,6-10H,5H2,1-3H3/b8-4+

HIDE SMILES / InChI

Molecular Formula C13H17NO
Molecular Weight 203.2802
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 1
Optical Activity NONE

Crotamiton is a scabicidal and antipruritic agent available as a cream or lotion for topical use. The drug was approved by FDA for the treatment of scabies and pruritic skin. Crotamiton is a mixture of the cis and trans isomers of N-ethyl-N-(o-methylphenyl)-2butenamide. Although the activity of crotamiton was shown both in vitro and in vivo, the mechanism of its action is still unknown.

Approval Year

Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Curative
EURAX

Approved Use

For eradication of scabies (Sarcoptes scabiei) and for symptomatic treatment of pruritic skin.

Launch Date

1949
Palliative
EURAX

Approved Use

For eradication of scabies (Sarcoptes scabiei) and for symptomatic treatment of pruritic skin.

Launch Date

1949
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
24.5 ng/mL
500 mg single, topical
dose: 500 mg
route of administration: Topical
experiment type: SINGLE
co-administered:
CROTAMITON plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
344 ng × h/mL
500 mg single, topical
dose: 500 mg
route of administration: Topical
experiment type: SINGLE
co-administered:
CROTAMITON plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
10 % 2 times / day multiple, topical
Recommended
Dose: 10 %, 2 times / day
Route: topical
Route: multiple
Dose: 10 %, 2 times / day
Sources:
unhealthy, CHILD|ADULT
Health Status: unhealthy
Age Group: CHILD|ADULT
Sex: M+F
Food Status: UNKNOWN
Sources:
PubMed

PubMed

TitleDatePubMed
Topical ivermectin versus crotamiton cream 10% for the treatment of scabies.
2014-07
Treatment of scabies, permethrin 5% cream vs. crotamiton 10% cream.
2013
Chromatography of crotamiton and its application to the determination of active ingredients in ointments.
1997-06
Contact dermatitis from crotamiton.
1992-07
The sensitizing capacity of crotamiton.
1988-05
Treatment of scabies with crotamiton.
1988-05
Contact dermatitis due to crotamiton.
1986-10
Crotamiton lotion in pruritus.
1984-12
A single application of crotamiton lotion in the treatment of patients with pediculosis capitis.
1982-12
Crotamiton cream and lotion in the treatment of infants and young children with scabies.
1979
[Crotamiton and crotamiton hydrocortisone compounds in the treatment of pruritus].
1965-08-20
The use of N-ethyl-o-crotonotoluidide in the treatment of scabies and various pruritic dermatoses.
1949-07
Patents

Sample Use Guides

In Vivo Use Guide
Unknown
Route of Administration: Unknown
In Vitro Use Guide
Unknown
Substance Class Chemical
Created
by admin
on Mon Mar 31 17:58:30 GMT 2025
Edited
by admin
on Mon Mar 31 17:58:30 GMT 2025
Record UNII
2EEH27851Y
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
TRANS-CROTAMITON
Preferred Name English
CROTAMITON, (E)-
Common Name English
2-BUTENAMIDE, N-ETHYL-N-(2-METHYLPHENYL)-, (E)-
Systematic Name English
2-BUTENAMIDE, N-ETHYL-N-(2-METHYLPHENYL)-, (2E)-
Systematic Name English
Code System Code Type Description
FDA UNII
2EEH27851Y
Created by admin on Mon Mar 31 17:58:30 GMT 2025 , Edited by admin on Mon Mar 31 17:58:30 GMT 2025
PRIMARY
EPA CompTox
DTXSID101256463
Created by admin on Mon Mar 31 17:58:30 GMT 2025 , Edited by admin on Mon Mar 31 17:58:30 GMT 2025
PRIMARY
CAS
124236-29-9
Created by admin on Mon Mar 31 17:58:30 GMT 2025 , Edited by admin on Mon Mar 31 17:58:30 GMT 2025
PRIMARY
PUBCHEM
688020
Created by admin on Mon Mar 31 17:58:30 GMT 2025 , Edited by admin on Mon Mar 31 17:58:30 GMT 2025
PRIMARY