Chemical identity
Paracetamol EP Impurity H
CAS 2623-33-8 · C10H11NO3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-24686 |
|---|---|
| PubChem CID | 17499 |
| Name | Paracetamol EP Impurity H |
| CAS RN | 2623-33-8 |
| Molecular formula | C10H11NO3 |
| Molecular weight | 193.20 g/mol |
| IUPAC name | 4-(Acetylamino)phenyl acetate |
| InChIKey | UJAOSPFULOFZRR-UHFFFAOYSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C10H11NO3 |
|---|---|
| InChIKey | UJAOSPFULOFZRR-UHFFFAOYSA-N |
| Ring count | 1 |
| Defined stereocentres | 0 |
| Unassigned stereocentres | 0 |
| SMILES | CC(OC1=CC=C(NC(C)=O)C=C1)=O |
|---|---|
| InChI | InChI=1S/C10H11NO3/c1-7(12)11-9-3-5-10(6-4-9)14-8(2)13/h3-6H,1-2H3,(H,11,12) |
03India status for this compound
These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.
| NDPS / RCS | NOT FOUND IN REVIEWED ENTRIES | CAS 2623-33-8 was not found in the reviewed exact-identity entries. Generic, class, analogue, salt and isomer provisions were not evaluated. |
|---|---|---|
| SCOMET | NOT FOUND IN REVIEWED CAS ENTRIES | CAS 2623-33-8 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · source version 1985-09-16
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · source version 2026-03-11
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · source version 2024-09-02
04Safety data (SDS / MSDS)
Compound-specific GHS text is shown without pictograms. Check the source SDS for the exact material and concentration before use.
GHS classification and hazard statements
- H315Causes skin irritation.Skin irritation, Category 2
- H319Causes serious eye irritation.Eye irritation, Category 2
Precautionary statements
- P264Wash thoroughly after handling.
- P280Wear protective gloves and eye protection.
- P302+P352IF ON SKIN: Wash with plenty of water.
- P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
- P337+P317If eye irritation persists: Get medical help.
Public classification reports vary. Only the skin and eye irritation statements supported across the reviewed records are shown. Review source: PubChem GHS record for CID 17499.
05Names and relationships
Associated parent compound
Paracetamol
View API and impurity familyOther names
- N,O-diacetyl-p-aminophenol ,4-(Acetylamino)phenyl acetate ,4-Acetoxyacetanilide ,N-[4-(Acetyloxy)phenyl]acetamide
- Acetaminophen Related Compound A
- Paracetamol (Acetaminophen) EP Impurity H
06Documented history
Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.
No verified discovery, first report, occurrence, use or issue event is currently available for this identity.
07Sources
- S01PubChem compound record, CID 17499
Names and machine-readable chemical identity properties.
- S02NCBI website and molecular data policies
Reuse policy for NCBI molecular data. This page does not reproduce vendor descriptions or contributed narrative text.
- S03Narcotic Drugs and Psychotropic Substances Act, 1985, Schedule
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S04Controlled-substances notifications and amendments
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S05Appendix 3, SCOMET List
Directorate General of Foreign Trade, Government of India. Used for the exact-compound India status shown on this page.
