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Screening compounds

Methysergide

Also known as Methysergid, Desernil, Deseril

CAS 361-37-5Formula C21H27N3O2Molar mass 353.47 g/molEC 206-644-0
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Methysergide chemical structure, C21H27N3O2, CAS 361-37-5
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Crystals
Melting point
195 °C
Solubility
MP IS UNCHARACTERISTIC SHOWING DECOMP ABOVE APPROX 165 °C, ODORLESS OR HAS NOT MORE THAN…
HS code
293399
Category
Screening compounds
Illustrative photo, assorted laboratory chemical bottles and jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Methysergide?

Plain description, key identifiers and synonyms

(6aR,9R)-N-[(2S)-1-hydroxybutan-2-yl]-4,7-dimethyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide is an ergoline alkaloid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(6aR,9R)-N-[(2S)-1-hydroxybutan-2-yl]-4,7-dimethyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide
CAS number
361-37-5 CAS number cross-checked
EC number
206-644-0
Molecular formula
C21H27N3O2
UNII
XZA9HY6Z98
InChIKey
KPJZHOPZRAFDTN-ZRGWGRIASA-N
InChI
InChI=1S/C21H27N3O2/c1-4-15(12-25)22-21(26)14-8-17-16-6-5-7-18-20(16)13(10-23(18)2)9-19(17)24(3)11-14/h5-8,10,14-15,19,25H,4,9,11-12H2,1-3H3,(H,22,26)/t14-,15+,19-/m1/s1
Canonical SMILES
CCC(CO)NC(=O)C1C=C2c3cccc4c3c(cn4C)CC2N(C)C1
Isomeric SMILES
CC[C@@H](CO)NC(=O)[C@H]1CN([C@@H]2CC3=CN(C4=CC=CC(=C34)C2=C1)C)C

Synonyms

  • Methysergid
  • Desernil
  • Deseril
  • 1-Methylmethylergonovine
  • Methysergidum
  • Metisergide
  • Metisergido
  • metisergida
  • Methyllysergic acid butanolamide
  • N-(alpha-(Hydroxymethyl)propyl)-1-methyl-dextro-lysergamide
  • 1-Methyl-D-lysergic acid butanolamide
  • N-(1-(Hydroxymethyl)propyl)-1-methyl-dextro-(+)-lysergamide
  • Ergoline-8-carboxamide, 9,10-didehydro-N-(1-(hydroxymethyl)propyl)-1,6-dimethyl-, (8beta)-
  • Ergoline-8beta-carboxamide, 9,10-didehydro-N-(1-(hydroxymethyl)propyl)-1,6-dimethyl-
  • (+)-N-(1-(Hydroxymethyl)propyl)-1-methyl-D-lysergamide
  • 1-Methyl-dextro-lysergic acid (+)-1-hydroxy-2-butylamide
  • Dimethylergometrin
  • 9,10-Didehydro-N-(1-(hydroxymethyl)propyl)-1,6-dimethylergoline-8-carboxamide
  • (+)-9,10-Didehydro-N-(1-(hydroxymethyl)propyl)-1,6-dimethylergoline-8beta-carboxamide
  • Methylmethylergonovine
  • (4R,7R)-N-((2S)-1-hydroxybutan-2-yl)-6,11-dimethyl-6,11-diazatetracyclo(7.6.1.0^(2,7).0^(12,16))hexadeca-1(16),2,9,12,14-pentaene-4-carboxamide
  • (4R,7R)-N-[(2S)-1-hydroxybutan-2-yl]-6,11-dimethyl-6,11-diazatetracyclo[7.6.1.0^{2,7}.0^{12,16}]hexadeca-1(16),2,9,12,14-pentaene-4-carboxamide
  • (6aR,9R)-N-((1S)-1-(hydroxymethyl)propyl)-4,7-dimethyl-6,6a,8,9-tetrahydroindolo(4,3-fg)quinoline-9-carboxamide
  • (6aR,9R)-N-[(1S)-1-(hydroxymethyl)propyl]-4,7-dimethyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide
  • Maleate, Methysergide
Show all 34 synonyms
  • Dimaleate, Methysergide
  • Ergoline-8-carboxamide, 9,10-didehydro-N-(1-(hydroxymethyl)propyl)-1,6-dimethyl-, (8beta(S))-
  • (4R,7R)-N-(1-hydroxybutan-2-yl)-6,11-dimethyl-6,11-diazatetracyclo(7.6.1.02,7.012,16)hexadeca-1(15),2,9,12(16),13-pentaene-4-carboxamide
  • Sansert
  • Deseryl
  • Desernyl
  • UML 491
  • (6aR,9R)-N-[(2S)-1-hydroxybutan-2-yl]-4,7-dimethyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide
  • Desril

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

Appearance
Crystalsexp.
Melting point
195 °Cexp.
Solubility
MP IS UNCHARACTERISTIC SHOWING DECOMP ABOVE APPROX 165 °C, ODORLESS OR HAS NOT MORE THAN SLIGHT ODOR, WHITE TO YELLOWISH WHITE OR REDDISH WHITE CRYSTALLINE POWDER, 1 G SOL IN 200 ML WATER, 165 ML ALCOHOL, 3400 ML CHLOROFORM, PRACTICALLY...exp.

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
353.47 g/molcalc.
Exact mass
353.2103 Dacalc.
LogP (octanol/water)
1.94calc.
Topological polar surface area
57.5 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
4calc.
Heavy atoms
26calc.
Rings
4calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.48calc.
Formal charge
0calc.
Stereocentres
3calc.
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, C1=C2c3cccc4[nH]cc(c34)CC2NCC1

C1=C2c3cccc4[nH]cc(c34)CC2NCC1

4 rings, 16 atoms, the 9,10-Ergolene ring system.

145 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

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

Methysergide suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 5 suppliers
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Where suppliers are based

5 suppliers in 3 countries

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Methysergide 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

Use classes: Pharmaceuticals.

Pharmacological actions

  • Serotonin Antagonists
  • Vasoconstrictor Agents

Roles

  • adrenergic agent
  • cardiovascular drug
  • neurotransmitter agent
  • pharmaceutical
  • serotonergic antagonist
  • serotonergic drug
  • sympatholytic agent
  • vasoconstrictor agent

How it is made

British patent 854,569 (1960), Hoffman, Troxler, US patent 3,218,324 (1965 to Sandoz).

Lysergic acid hydroxybutylamide (methylergonovine)... methylation of indole N of latter compound yields 1-methyl-methylergonovine (methysergide).

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 Methysergide is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Methysergide?

(6aR,9R)-N-[(2S)-1-hydroxybutan-2-yl]-4,7-dimethyl-6,6a,8,9-tetrahydroindolo[4,3-fg]quinoline-9-carboxamide is an ergoline alkaloid.

What is the CAS number of Methysergide?

The CAS registry number of Methysergide is 361-37-5.

What is the molecular formula and weight of Methysergide?

The molecular formula of Methysergide is C21H27N3O2 and its molar mass is 353.47 g/mol.

What is Methysergide used for?

Use classes: Pharmaceuticals.

Is Methysergide hazardous?

No GHS hazard classification for Methysergide is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Methysergide?

Methysergide is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Methysergide?

CompoundList lists 5 suppliers of Methysergide in China, Czech Republic and Japan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Methysergide?

Suppliers quote Methysergide 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 Methysergide

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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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