HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Compound

1-Methylpyrrole

HCID 7304
New noteNew reactionRequest quotes
Print preview
Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
Substructure searchFind similar structures

Basic information

CAS
27417-39-6
Standard SMILES
Cn1cccc1
InChIKey
OXHNLMTVIGZXSG-UHFFFAOYSA-N
Molecular formula
C5H7N
Average molar mass
81.12 g/mol
Monoisotopic mass
81.05784923

Overview

1-Methylpyrrole is a member of pyrroles.

Names & identifiers

Preferred name
1-Methylpyrrole
IUPAC
1-methylpyrrole
English name
1-Methylpyrrole
Molecular formula
C5H7N
Molecular weight
81.12

Names & synonyms

1-Methylpyrrole1-Methyl-1H-pyrroleN-METHYLPYRROLE96-54-81H-Pyrrole, 1-methyl-Pyrrole, 1-methyl-DTXSID3052648NG5GPN98ZGNSC-65440DTXCID4031221RefChem:76411202-513-7
Show more names
1H-pyrrole,1-methyl-1-methyl-pyrrolpyrrole,1-methyl-
N-Methyl pyrroleMethylpyrroleN-Methylpyrrol1-methylpyrrolMFCD000053451257247-93-0MR31-Methyl-1H-pyrrole; 1-Methylpyrrole; NSC 65440;

Database identifiers

CAS
27417-39-6、96-54-8
PubChem CID
7304
DTXSID
DTXSID3052648
ChEMBL
CHEMBL1234459
ChEBI
CHEBI:89012
UNII
NG5GPN98ZG
EC Number
202-513-7
Nikkaji
J2.431.884B、J40.162E

Properties

Computed structural properties

XLogP
1.2
Topological polar surface area
4.9 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
0
Rotatable bonds
0
Heavy atoms
6
Formal charge
0
Complexity
37.2

Experimental & physicochemical properties

Chemical ClassesNitrogen Compounds -> Pyrroles
SpringerMaterials PropertiesSchoenflies notation
LogP · 2 items

1.21

1.15

Density0.9145 @ 15°C
Flash Point16 °C
Boiling Point · 3 items

The Guide in the Emergency Response Guidebook is for "Flammable liquid, n.o.s." 112-113 °C

112.00 to 113.00 °C. @ 760.00 mm Hg

112.81 °C @760 [mm Hg]

Melting Point-57.00 °C. @ 760.00 mm Hg
Vapor Pressure · 2 items

21.4 [mmHg]

15 [mm Hg] @20.2 °C

Physical DescriptionColorless liquid; [Hawley] Bright yellow liquid; [Ullmann]

Physicochemical properties

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Warning

H302 (89.9%): Harmful if swallowed [Warning Acute toxicity, oral]

P261, P264, P270, P271, P280, P301+P317, P302+P352, P304+P340, P319, P321, P330, P332+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1523 reports by companies from 19 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 3 items

Chemical: 1H-Pyrrole, 1-methyl-

Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)

1-Methylpyrrole: Does not have an individual approval but may be used under an appropriate group standard

Hazards Summary · 1 item

Flammable liquid; [Hawley] A skin irritant; [eChemPortal: ERMA] An irritant; [MSDSonline] Harmful if swallowed; LD50 (rats) = 1400 mg/kg; Rats inhaling saturated concentration at room temperature die after 1 hour; Severe mucosal irritation and narcosis were observed; [Ullmann]

Hazard Classes and CategoriesAcute Tox. 4 (89.9%)

Safety & protection

Protective Action Criteria (PAC) · 3 items

12 [mg/m3]

130 [mg/m3]

790 [mg/m3]

Toxicology

Chemistry & industry

Pharmacology

Cellular LocationsCytoplasm

Uses & manufacturing

UsesUsed in organic synthesis; [Hawley]
General Manufacturing Information1H-Pyrrole, 1-methyl-: ACTIVE
Applications · 3 items

Description1-Methylpyrrole is a fundamental structural unit employed in synthesis, belonging to the class of pyrrole compounds. It can be used as a monomer for preparing thin-film polymers and is utilised in electrochemical research. It also participates in photoaddition and substitution reactions, and is used to prepare hybrid compounds such as 1-methyl-2-(1,2-diphenylethyl)pyrrole.

UsesOrganic synthesis.

Uses1-Methylpyrrole, can be used as organic synthetic materials, widely used in medicine. It is also used as a pharmaceutical intermediate.

Upstream & downstream products

Upstream raw materials

1H-Pyrrole, 2,3-bis[(1,1-dimethylethyl)thio]-1-methyl-1H-Pyrrole, 1-methyl-2-(methylthio)-Methyl pyrrole-1-carboxylateMethyl 4-(3-cyanopyridin-2-yl)-5-formyl-1H-pyrrole-3-carboxylate

Related reactions

139 records
New reaction record
HRID 827 reaction equation
HRID 827As reactantuspto-grants-1998_03
HRID 2831 reaction equation
HRID 2831As reactantuspto-grants-1998_03
HRID 48051 reaction equation
HRID 48051As reactantuspto-grants-2004_03
HRID 48960 reaction equation
HRID 48960As reactantuspto-grants-2004_03
HRID 50483 reaction equation
HRID 50483As reactantuspto-grants-2004_03
HRID 66590 reaction equation
HRID 66590As reactantuspto-grants-1982_08
HRID 98751 reaction equation
HRID 98751As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 112559 reaction equation
HRID 112559As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
Page 1 of 18

Compound notes

Loading…

On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
New noteNew reactionRequest quotes
Melting point
-57 °C · -57 °C (lit.)
Boiling point
112 · 112-113 °C (lit.)
Density
0.914 g/mL · 0.914 g/mL at 25 °C (lit.)
vapor density
2.8 · 2.8 (vs air)
vapor pressure
15 mm · 15 mm Hg ( 20.2 °C)
refractive index
20 · n20/D 1.489
Flash point
59 °F · 59 °F
storage temp.
30 °C · Store below +30°C.
solubility
13 g/l · 13g/l
form
liquid
pka
-2.8 · -2.80±0.70(Predicted)
color
yellow-brown
PH
10.4 · 10.4 (10g/l, H2O, 10℃)
Odor
1 % · at 1.00 % in dipropylene glycol. powerful smoky woody herbal
Odor Type
woody
biological source
synthetic
explosive limit
1.4 · 1.4-8.5%(V)
Water Solubility
Soluble in organic solvents such as alcohol and so on, but insoluble in water.
BRN
104181 · 104181
Henry's Law Constant
9 · 9.0×10-3 mol/(m3Pa) at 25℃, Hilal et al. (2008)
Major Application
flavors and fragrances
InChI
1S/C5H7N/c1-6-4-2-3-5-6/h2-5H,1H3
InChIKey
OXHNLMTVIGZXSG-UHFFFAOYSA-N
SMILES
Cn1cccc1
LogP
1.21 · 1.210
CAS DataBase Reference
96 · 96-54-8(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
5 GPN98ZG · NG5GPN98ZG
NIST Chemistry Reference
1 H-Pyrrole, · 1H-Pyrrole, 1-methyl-(96-54-8)
EPA Substance Registry System
1 H-Pyrrole, · 1H-Pyrrole, 1-methyl- (96-54-8)
UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
2 · GHS02,GHS07
Signal word
Danger
Hazard statements
225 · H225-H302-H315
Precautionary statements
210 · P210-P233-P240-P241-P301+P312-P303+P361+P353
PPE
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes
F,Xi,Xn
Risk Statements
11 · 11-36/37/38-37/38-22
Safety Statements
16 · 16-26-36-37-25-23
RIDADR
1993 · UN 1993 3/PG 2
WGK Germany
3 · 3
RTECS
9640000 · UX9640000
Autoignition Temperature
400 °C · 400 °C
TSCA
TSCA listed
HazardClass
3 · 3
PackingGroup
II
HS Code
29339990 · 29339990
Storage Class
3 · 3 - Flammable liquids
Hazard Classifications
4 OralFlam · Acute Tox. 4 OralFlam. Liq. 2Skin Irrit. 2
Toxicity
50 orally · LD50 orally in Rabbit: 1400 mg/kg LD50 dermal Rabbit > 400 mg/kg
Limited Quantities
1 L · 1.0 L (0.3 gallon) (liquid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
Adverse Effects
Neurotoxin - Other CNS neurotoxin
Toxicity DataLC50 (rat) = >5.6 mg/l/4H;

Safety data

PPE
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
wgk
3
tsca
TSCA listed
rtecs
UX9640000
ridadr
UN 1993 3/PG 2
hs_code
29339990
Toxicity
LD50 orally in Rabbit: 1400 mg/kg LD50 dermal Rabbit > 400 mg/kg
risk_code
11-36/37/38-37/38-22
Signal word
Danger
Symbol(GHS)
GHS02,GHS07
hazard_code
F,Xi,Xn
safety_code
16-26-36-37-25-23
hazard_class
3
Storage Class
3 - Flammable liquids
packing_group
II
Hazard statements
H225-H302-H315
Limited Quantities
1.0 L (0.3 gallon) (liquid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
Hazard Classifications
Acute Tox. 4 OralFlam. Liq. 2Skin Irrit. 2
Autoignition Temperature
400 °C
Precautionary statements
P210-P233-P240-P241-P301+P312-P303+P361+P353
N-Ethylpyrrole
1H-pyrrole, 1,2-diMethyl-
3,3-Dimethyl-1-butene
Methylamine hydrochloride
2,5-Dimethoxytetrahydrofuran
Ethyl 3-bromopropionate
1-Methylpyrrolidine
Succinaldehyde

Downstream products

ethyl 1-methylpyrrole-2-carboxylate1-Methylpyrrole-2-carbonyl chloride(1-Methyl-1H-pyrrol-2-yl)methylamine3,4'-Dichlorodiphenyl ether2-Methyl-1H-pyrroleTrigonelline

Additional notes

DefinitionChEBI: 1-Methylpyrrole is a member of pyrroles.