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Screening compounds

Entinostat

Also known as ms-275, SNDX-275, MS 275

CAS 209783-80-2Formula C21H20N4O3Molar mass 376.42 g/molEC 630-693-0
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant, Serious health hazard 63 suppliers listed
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Entinostat chemical structure, C21H20N4O3, CAS 209783-80-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
209783-80-2
Formula
C21H20N4O3
Molar mass
376.42 g/mol
EC number
630-693-0
HS code
293339
Category
Screening compounds

What is Entinostat?

Plain description, key identifiers and synonyms

Entinostat is a member of the class of benzamides resulting from the formal condensation of the carboxy group of the pyridin-3-ylmethyl carbamate derivative of p-(aminomethyl)benzoic acid with one of the amino groups of benzene-1,2-diamine. It is an inhibitor of histone deacetylase isoform 1 (HDAC1) and isoform 3 (HDAC3). It has a role as an antineoplastic agent, an EC 3.5.1.98 (histone deacetylase) inhibitor and an apoptosis inducer. It is a member of benzamides, a carbamate ester, a member of pyridines, a substituted aniline and a primary amino compound. It is functionally related to a 1,2-phenylenediamine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
pyridin-3-ylmethyl N-[[4-[(2-aminophenyl)carbamoyl]phenyl]methyl]carbamate
CAS number
209783-80-2 CAS number cross-checked
EC number
630-693-0
Molecular formula
C21H20N4O3
UNII
1ZNY4FKK9H
MDL number
MFCD08272435
InChIKey
INVTYAOGFAGBOE-UHFFFAOYSA-N
InChI
InChI=1S/C21H20N4O3/c22-18-5-1-2-6-19(18)25-20(26)17-9-7-15(8-10-17)13-24-21(27)28-14-16-4-3-11-23-12-16/h1-12H,13-14,22H2,(H,24,27)(H,25,26)
SMILES (canonical and isomeric)
C1=CC=C(C(=C1)N)NC(=O)C2=CC=C(C=C2)CNC(=O)OCC3=CN=CC=C3

Synonyms

  • ms-275
  • SNDX-275
  • MS 275
  • SNDX 275
  • MS 27-275
  • entinostatum
  • pyridin-3-ylmethyl N-[[4-[(2-aminophenyl)carbamoyl]phenyl]methyl]carbamate
  • BAY 86-5274
  • N-(2-aminophenyl)-4-(N-(pyridin-3-ylmethoxycarbonyl)aminomethyl)benzamide
  • Carbamic acid, N-[[4-[[(2-aminophenyl)amino]carbonyl]phenyl]methyl]-, 3-pyridinylmethyl ester
  • (pyridin-3-yl)methyl N-({4-[(2-aminophenyl)carbamoyl]phenyl}methyl)carbamate
  • pyridin-3-ylmethyl N-({4-[(2-aminophenyl)carbamoyl]phenyl}methyl)carbamate
  • N-[[4-[(2-aminoanilino)-oxomethyl]phenyl]methyl]carbamic acid 3-pyridinylmethyl ester
  • N-(2-aminophenyl)-4-[N-(pyridin-3-ylmethoxycarbonyl)aminomethyl]benzamide
  • pyridin-3-ylmethyl N-((4-((2-aminophenyl)carbamoyl)phenyl)methyl)carbamate
  • (pyridin-3-yl)methyl N-((4-((2-aminophenyl)carbamoyl)phenyl)methyl)carbamate
  • N-((4-((2-aminoanilino)-oxomethyl)phenyl)methyl)carbamic acid 3-pyridinylmethyl ester
  • Carbamic acid, N-((4-(((2-aminophenyl)amino)carbonyl)phenyl)methyl)-, 3-pyridinylmethyl ester
  • HDAC inhibitor SNDX-275
  • N-(2-Aminophenyl)-4-(N-(pyridin-3-yl-methoxycarbonyl)aminomethyl)b enzamide
  • Carbamic acid, ((4-(((2-aminophenyl)amino)carbonyl)phenyl) methyl)-, 3-pyridinylmethyl ester
  • Entinostat (MS-275)
  • pyridin-3-ylmethyl 4-((2-aminophenyl)carbamoyl)benzylcarbamate
  • Entinostat, free base
  • Entinostat(MS-27-275)
Show all 37 synonyms
  • Entinostat (MS-27-275)
  • (pyridin-3-yl)methyl 4-(2-aminophenylcarbamoyl)benzylcarbamate
  • Carbamic acid, 3-pyridinylmethyl ester
  • pyridin-3-ylmethyl 4-(2-aminophenylcarbamoyl)benzylcarbamate
  • MS-275, A HDAC1 and HDAC3 inhibitor
  • pyridin-3-ylmethyl {4-[(2-aminophenyl)carbamoyl]benzyl}carbamate
  • 3-pyridylmethyl N-[[4-[(2-aminophenyl)carbamoyl]phenyl]methyl]carbamate
  • 3-Pyridinylmethyl ((4-(((2-aminophenyl)amino)carbonyl)phenyl)methyl)carbamate
  • Carbamic acid, N-((4-(((2-aminophenyl)amino)carbonyl)phenyl)methyl)-, 3- pyridinylmethyl ester
  • MS-275,Entinostat, SNDX-275, MS-27-275
  • pyridin-3-ylmethyl (4-((2-aminophenyl)carbamoyl)benzyl)carbamate
  • 3-pyridinylmethyl [[4-[[(2-aminophenyl)amino]carbonyl]phenyl]methyl]carbamate

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
376.42 g/molcalc.
Exact mass
376.1535 Dacalc.
LogP (octanol/water)
3.34calc.
Topological polar surface area
106.3 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
6calc.
Heavy atoms
28calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.1calc.
Formal charge
0calc.
Stereocentres
0calc.
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(NCc1ccc(C(=O)Nc2ccccc2)cc1)OCc1cccnc1

O=C(NCc1ccc(C(=O)Nc2ccccc2)cc1)OCc1cccnc1

3 rings, 27 atoms.

No other chemical in our database has this scaffold.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H301Toxic if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
  • H360May damage fertility or the unborn child.
  • H360DMay damage the unborn child.
Precautionary statements (21)
  • P203Obtain, read and follow all safety instructions before use.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P318If exposed or concerned, get medical advice.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Entinostat suppliers

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All 63 suppliers
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Where suppliers are based

63 suppliers in 10 countries

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Entinostat 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

Pharmacological actions

  • Antineoplastic Agents
  • Histone Deacetylase Inhibitors

Roles

  • antineoplastic agent
  • apoptosis inducer
  • enzyme inhibitor
  • pharmaceutical
  • protective agent
  • renoprotective agent

Pharmacology

Entinostat is a synthetic benzamide derivative with potential antineoplastic activity. Entinostat binds to and inhibits histone deacetylase, an enzyme that regulates chromatin structure and gene transcription. This agent appears to exert dose-dependent effects in human leukemia cells including cyclin-dependent kinase inhibitor 1A (p21/CIP1/WAF1)-dependent growth arrest and differentiation at low drug concentrations, a marked induction of reactive oxygen species (ROS), mitochondrial damage, caspase activation, and, at higher concentrations, apoptosis. In normal cells, cyclin-dependent kinase inhibitor 1A expression has been associated with cell-cycle exit and differentiation.

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 Entinostat is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Entinostat?

Entinostat is a member of the class of benzamides resulting from the formal condensation of the carboxy group of the pyridin-3-ylmethyl carbamate derivative of p-(aminomethyl)benzoic acid with one of the amino groups of benzene-1,2-diamine.

What is the CAS number of Entinostat?

The CAS registry number of Entinostat is 209783-80-2.

What is the molecular formula and weight of Entinostat?

The molecular formula of Entinostat is C21H20N4O3 and its molar mass is 376.42 g/mol.

What is Entinostat used for?

Known uses and roles of Entinostat include building blocks in research and laboratory, screening compounds in research and laboratory, antineoplastic agent, apoptosis inducer, enzyme inhibitor and 5 more.

Is Entinostat hazardous?

Entinostat carries the GHS signal word "Danger". Main hazards: toxic if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Entinostat?

Entinostat is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Entinostat?

CompoundList lists 63 suppliers of Entinostat in China, United States, United Kingdom, Japan and 6 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Entinostat?

Suppliers quote Entinostat 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

Practical guides that help when you source, ship or handle Entinostat

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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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