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Pharmaceuticals and APIs

Clostilbegit

Also known as Clomiphene citrate, Clomifene citrate, Clostilbegyt

CAS 50-41-9Formula C32H36ClNO8Molar mass 598.09 g/molEC 200-035-3
GHS signal word: Danger. Pictograms: Serious health hazard 104 suppliers listed Drug substance
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Clostilbegit chemical structure, C32H36ClNO8, CAS 50-41-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
50-41-9
Formula
C32H36ClNO8
Molar mass
598.09 g/mol
EC number
200-035-3
HS code
292229
Category
Pharmaceuticals and APIs

What is Clostilbegit?

Plain description, key identifiers and synonyms

Clomiphene Citrate is the citrate salt form of clomiphene, a triphenylethylene nonsteroidal ovulatory stimulant evaluated for antineoplastic activity against breast cancer. Clomiphene has both estrogenic and anti-estrogenic activities that compete with estrogen for binding at estrogen receptor sites in target tissues. This agent causes the release of the pituitary gonadotropins follicle stimulating hormone (FSH) and luteinizing hormone (LH), leading to ovulation. (NCI04)

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[4-(2-chloro-1,2-diphenylethenyl)phenoxy]-N,N-diethylethanamine, 2-hydroxypropane-1,2,3-tricarboxylic acid
CAS number
50-41-9 CAS number cross-checkedOther or deprecated CAS: 43054-45-1
EC number
200-035-3
Molecular formula
C32H36ClNO8
UNII
1B8447E7YI
MDL number
MFCD00058322
InChIKey
PYTMYKVIJXPNBD-UHFFFAOYSA-N
InChI
InChI=1S/C26H28ClNO.C6H8O7/c1-3-28(4-2)19-20-29-24-17-15-22(16-18-24)25(21-11-7-5-8-12-21)26(27)23-13-9-6-10-14-23;7-3(8)1-6(13,5(11)12)2-4(9)10/h5-18H,3-4,19-20H2,1-2H3;13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
SMILES (canonical and isomeric)
CCN(CC)CCOC1=CC=C(C=C1)C(=C(C2=CC=CC=C2)Cl)C3=CC=CC=C3.C(C(=O)O)C(CC(=O)O)(C(=O)O)O

Synonyms

  • Clomiphene citrate
  • Clomifene citrate
  • Clostilbegyt
  • Ikaclomine
  • Milophene
  • Pergotime
  • Clomifeni citras
  • Clomphid
  • Ikaclomin
  • Racemic clomiphene citrate
  • Clomiphene dihydrogen citrate
  • 2-(p-(2-Chloro-1,2-diphenylvinyl)phenoxy)triethylamine citrate (1:1)
  • Clophene
  • Clomiphene Citrtae
  • Citrate, Clomiphene
  • 2-(p-(2-Chloro-1,2-diphenylvinyl)phenoxy)triethylamine Citrate
  • 2-(4-(2-Chloro-1,2-diphenylvinyl)phenoxy)-N,N-diethylethylamine monocitrate
  • Clomid
  • Clomiphene citrate (1:1)
  • Clomiphene citrate salt
  • C32H36ClNO8
  • Clomivid
  • Dyneric
  • Genozym
  • Serophene
Show all 38 synonyms
  • Chloramiphene Citrate
  • Mixture of the (E)- and (Z)-isomers of 2-[4-(2-chloro-1,2-diphenylethenyl)phenoxy]-N,N-diethylethanaminedihydrogen citrate
  • 2-[4-(2-chloro-1,2-diphenylethenyl)phenoxy]-N,N-diethylethanamine, 2-hydroxypropane-1,2,3-tricarboxylic acid
  • clomifene dihydroen citrate
  • MRL 41
  • Clostilbegyl
  • Cyclolysal
  • Kyliformon
  • Ardomon
  • Fertivet
  • Gravosan
  • Indovar
  • Prolifen

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
598.09 g/molcalc.
Exact mass
597.2129 Dacalc.
LogP (octanol/water)
5.31calc.
Topological polar surface area
144.6 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
6calc.
Rotatable bonds
14calc.
Heavy atoms
42calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.28calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Fails (2 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, C(=C(c1ccccc1)c1ccccc1)c1ccccc1

C(=C(c1ccccc1)c1ccccc1)c1ccccc1

3 rings, 20 atoms, the Triphenylethylene ring system.

482 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H360May damage fertility or the unborn child.
  • H361Suspected of damaging fertility or the unborn child.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • 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

Clostilbegit suppliers

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All 104 suppliers
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Where suppliers are based

104 suppliers in 18 countries

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Clostilbegit 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

Roles

  • anti-estrogen
  • pharmaceutical

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Clostilbegit is traded under.

HS 2922.29Indicative HS code

Amino-naphthols and other amino-phenols, other than those containing more than one kind…

World exports in 2024
$467M
−15.3% vs 2023, imports $454M
2019 to 2024
Top exporters
  1. China63.1%
  2. India * partner reported15.5%
  3. Japan4.0%
Top importers
  1. India * partner reported25.8%
  2. United States14.4%
  3. South Korea7.6%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Clostilbegit?

Clomiphene Citrate is the citrate salt form of clomiphene, a triphenylethylene nonsteroidal ovulatory stimulant evaluated for antineoplastic activity against breast cancer. Clomiphene has both estrogenic and anti-estrogenic activities that compete with estrogen for binding at estrogen receptor sites in target tissues.

What is the CAS number of Clostilbegit?

The CAS registry number of Clostilbegit is 50-41-9. Other or deprecated CAS numbers: 43054-45-1.

What is the molecular formula and weight of Clostilbegit?

The molecular formula of Clostilbegit is C32H36ClNO8 and its molar mass is 598.09 g/mol.

What is Clostilbegit used for?

Known uses and roles of Clostilbegit include anti-estrogen and pharmaceutical.

Is Clostilbegit hazardous?

Clostilbegit carries the GHS signal word "Danger". Main hazards: may damage fertility or the unborn child, suspected of damaging fertility or the unborn child. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Clostilbegit?

Clostilbegit is usually classified under HS code 292229 (Amino-naphthols and other amino-phenols, other than those containing more than one kind…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Clostilbegit?

CompoundList lists 104 suppliers of Clostilbegit in India, United States, China, Germany and 14 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Clostilbegit in India?

32 suppliers in India list Clostilbegit on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Clostilbegit?

Suppliers quote Clostilbegit on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

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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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