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Impurities and reference standards

Pseudoyohimbine

Also known as psi-Yohimbine, 3-Epiyohimbine, Methyl (3beta,16alpha)-17-hydroxyyohimban-16-carboxylate

CAS 84-37-7Formula C21H26N2O3Molar mass 354.45 g/mol
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Pseudoyohimbine chemical structure, C21H26N2O3, CAS 84-37-7
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
84-37-7
Formula
C21H26N2O3
Molar mass
354.45 g/mol
HS code
293399
Category
Impurities and reference standards

What is Pseudoyohimbine?

Plain description, key identifiers and synonyms

Pseudoyohimbine is a methyl 17-hydroxy-20xi-yohimban-16-carboxylate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
methyl (1R,15R,18S,19R,20S)-18-hydroxy-1,3,11,12,14,15,16,17,18,19,20,21-dodecahydroyohimban-19-carboxylate
CAS number
84-37-7 CAS number cross-checked
Molecular formula
C21H26N2O3
UNII
PJ26Z3D476
InChIKey
BLGXFZZNTVWLAY-AECJZGCLSA-N
InChI
InChI=1S/C21H26N2O3/c1-26-21(25)19-15-10-17-20-14(13-4-2-3-5-16(13)22-20)8-9-23(17)11-12(15)6-7-18(19)24/h2-5,12,15,17-19,22,24H,6-11H2,1H3/t12-,15-,17+,18-,19+/m0/s1
Canonical SMILES
COC(=O)C1C(O)CCC2CN3CCc4c([nH]c5ccccc45)C3CC21
Isomeric SMILES
COC(=O)[C@H]1[C@H](CC[C@@H]2[C@@H]1C[C@@H]3C4=C(CCN3C2)C5=CC=CC=C5N4)O

Synonyms

  • psi-Yohimbine
  • 3-Epiyohimbine
  • Methyl (3beta,16alpha)-17-hydroxyyohimban-16-carboxylate
  • Pseudo-yohimbine
  • (3R)-17alpha-hydroxyyohimban-16alpha-carboxylic acid methyl ester
  • (3beta)-17alpha-hydroxyyohimban-16alpha-carboxylic acid methyl ester
  • Yohimban-16-carboxylic acid, 17-hydroxy-, methyl ester, (3beta,16alpha)-
  • Yohimbine hydrochloride impurity d
  • Methyl 17alpha-hydroxy-3beta-yohimban-16alpha-carboxylate
  • methyl (3beta,16alpha,17alpha)-17-hydroxyyohimban-16-carboxylate
  • Pseudo-yohimbine (ep impurity)
  • Yohimban-16-carboxylic acid, 17-hydroxy-, methyl ester, (3beta,16alpha,17alpha)-
  • methyl (1R,15R,18S,19R,20S)-18-hydroxy-1,3,11,12,14,15,16,17,18,19,20,21-dodecahydroyohimban-19-carboxylate
  • Yohimbine hydrochloride impurity d (ep impurity)
  • (3b)-17a-Hydroxyyohimban-16a-carboxylate methyl ester
  • (3R)-17a-Hydroxyyohimban-16a-carboxylate methyl ester
  • (3b)-17a-Hydroxyyohimban-16a-carboxylic acid methyl ester
  • (3R)-17a-Hydroxyyohimban-16a-carboxylic acid methyl ester
  • (3R)-17alpha-Hydroxyyohimban-16alpha-carboxylate methyl ester
  • (3beta)-17alpha-Hydroxyyohimban-16alpha-carboxylate methyl ester
  • methyl hydroxy[?]carboxylate
  • Yohimbine EP Impurity D
  • Pseudoyohimbin
  • Yohimbine Hydrochloride EP Impurity D
  • 3beta-Yohimban-16alpha-carboxylic acid, methyl ester
Show all 27 synonyms
  • Yohimban-16-carboxylic acid, methyl ester, (3beta,16alpha,17alpha)-
  • (1R,2S,4aR,13bR,14aS)-methyl 2-hydroxy-1,2,3,4,4a,5,7,8,13,13b,14,14a-dodecahydroindolo[2',3':3,4]pyrido[1,2-b]isoquinoline-1-carboxylate

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
354.45 g/molcalc.
Exact mass
354.1943 Dacalc.
LogP (octanol/water)
2.65calc.
Topological polar surface area
65.56 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
1calc.
Heavy atoms
26calc.
Rings
5calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.57calc.
Formal charge
0calc.
Stereocentres
5calc.
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, c1ccc2c3c([nH]c2c1)C1CC2CCCCC2CN1CC3

c1ccc2c3c([nH]c2c1)C1CC2CCCCC2CN1CC3

5 rings, 21 atoms.

73 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.

Pseudoyohimbine suppliers

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Pseudoyohimbine 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

Applications are not documented for this substance yet. Suppliers often describe uses on their product pages, linked in the suppliers list above.

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 Pseudoyohimbine 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 Pseudoyohimbine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Pseudoyohimbine?

Pseudoyohimbine is a methyl 17-hydroxy-20xi-yohimban-16-carboxylate.

What is the CAS number of Pseudoyohimbine?

The CAS registry number of Pseudoyohimbine is 84-37-7.

What is the molecular formula and weight of Pseudoyohimbine?

The molecular formula of Pseudoyohimbine is C21H26N2O3 and its molar mass is 354.45 g/mol.

Is Pseudoyohimbine hazardous?

No GHS hazard classification for Pseudoyohimbine 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 Pseudoyohimbine?

Pseudoyohimbine 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 Pseudoyohimbine?

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What is the price of Pseudoyohimbine?

Suppliers quote Pseudoyohimbine 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 Pseudoyohimbine

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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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