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Diethylstilbestrol Produkt Beschreibung

Diethylstilbestrol Struktur
Englisch Name:

Diethylstilbestrol Eigenschaften

170-172 °C(lit.)
351.51°C (rough estimate)
1.1096 (rough estimate)
1.4800 (estimate)
storage temp. 
methanol: 0.1 g/mL, clear, faintly yellow
pKa 9.02(H2O t=25 I=0.025) (Uncertain)
Crystalline Powder
White to almost white
Isomerizes rapidly in Benzene, Chloroform, and Ether. Keep Shielded from light.
CAS Datenbank
56-53-1(CAS DataBase Reference)
NIST chemische Informationen
1 (Vol. 21, Sup 7, 100A) 2012
EPA chemische Informationen
Diethylstilbestrol (56-53-1)
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher T,N
R-Sätze: 45-61-36/37/38-51/53-40
S-Sätze: 53-36/37/39-45-60-61-36/37
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS-Nr. WJ5600000
HazardClass  6.1(b)
PackingGroup  III
HS Code  29072990
Giftige Stoffe Daten 56-53-1(Hazardous Substances Data)
Toxizität LD50 oral in rat: > 3gm/kg
Bildanzeige (GHS)
Alarmwort Achtung
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizität (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung
H350 Kann Krebs verursachen. Karzinogenität Kategorie 1A Achtung
H360 Kann die Fruchtbarkeit beeinträchtigen oder das Kind im Mutterleib schädigen. Fertility (Fruchtbarkeit) Kategorie 1 Achtung
H410 Sehr giftig für Wasserorganismen mit langfristiger Wirkung. Langfristig (chronisch) gewässergefährdend Kategorie 1 Warnung P273, P391, P501
P201 Vor Gebrauch besondere Anweisungen einholen.
P261 Einatmen von Staub vermeiden.
P273 Freisetzung in die Umwelt vermeiden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen.
P308+P313 BEI Exposition oder falls betroffen: Ärztlichen Rat einholen/ärztliche Hilfe hinzuziehen.
P501 Inhalt/Behälter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen.

Diethylstilbestrol Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:

R45:Kann Krebs erzeugen.
R61:Kann das Kind im Mutterleib schädigen.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
R40:Verdacht auf krebserzeugende Wirkung.

S-Sätze Betriebsanweisung:

S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.

Chemische Eigenschaften

White Solid




A synthetic, nonsteroidal estrogen. Recomended solvents are DMSO, DMF and ethanol, even in these solvents do not store in solution for any prolonged period of time.


Diethylstilbestrol is one of the older synthetic estrogens in use. It was used to treat prostate cancer but is now rarely used for this purpose because of its adverse effects,although it is occasionally used in postmenopausal women with breast cancer. It is taken orally in tablet form.

Manufacturing Process

50 parts by weight of p-hydroxypropiophenone are dissolved in 200 parts by weight of a 12.5% solution of caustic soda and shaken with 350 parts by weight of 3% sodium amalgam. The sodium salt of the pinacol thereby precipitating is reacted with glacial acetic acid, whereby the free pinacol is obtained (MP 205°C to 210°C, after purification 215°C to 217°C). The yield amounts to 95% of the theoretical. The pinacol is suspended in ether and gaseous hydrogen chloride introduced, whereby water separates and the pinacolin formed is dissolved in the ether, from which it is obtained by evaporation as a viscous oil (diacetateof MP 91°C). The yield is quantitative.
40 parts by weight of pinacolin are dissolved in ethyl alcohol and gradually treated with 80 parts by weight of sodium under reflux. The solution is decomposed with water and the pinacolin alcohol formed extracted from the neutralized solution with ether. The pinacolin alcohol is a viscous oil which is characterized by a dibenzoate of MP 172°C. The yield is 95% of the theoretical.
A solution of 30 parts by weight of pinacolin alcohol in ether is saturated with hydrogen chloride at room temperature and the ether solution then agitated with bicarbonate. After concentration by evaporation it leaves behind the crude diethylstilbestrol [α,β-(p,p'-dihydroxydiphenyl)-α,β-diethylethylene] which, when recrystallized from benzene, melts at 170°C to 171°C. The yield amounts to 75% of the calculated. The total yield of diethylstilbestrol, calculated on p-hydroxypropiophenone, is 68% of the theoretical.


Stilbestrol (Tablicaps); Stilbetin (Bristol-Myers Squibb);Distilbene;Oestro-gynedron;Stilphostrol.

Therapeutic Function


Weltgesundheitsorganisation (WHO)

Diethylstilbestrol, a synthetic estrogen which is a stilbene derivative, was introduced into obstetric practice in the late 1940s and subsequently widely used for the treatment of threatened abortion. This use was later shown to be associated with an increased risk of vaginal cancer in the offspring which resulted in restrictive regulatory action in several countries. Diethylstilbestrol and other stilbenes remain available in many countries, however, for the treatment of certain hormone-dependent neoplasms including carcinoma of the prostate and postmenopausal breast cancer. (Reference: (WHODI) WHO Drug Information, 77.1, 16, 1977)

Allgemeine Beschreibung

At first glance, it might be surprising that synthetic nonsteroidal molecules such as diethylstilbestrol (DES) could have the same activity as estradiol or other estrogens. DES can be viewed, however, as a form of estradiol with rings B and C open and a six-carbon ring D. The activity of DES analogs was explained in 1946. It was proposed that the distance between the two DES phenol OH groups was the same as the 3-OH to 17-OH distance of estradiol; therefore, they could both fit the same receptor. Medicinal chemists have shown the OH-to-OH distance to be actually 12.1 ? in DES and 10.9 ? in estradiol. In aqueous solution, however, estradiol has two water molecules that are hydrogen bonded to the 17-OH. If one of the two water molecules is included in the distance measurement, there is a perfect fit with the two OH groups of DES. This suggests that water may have an important role for estradiol in its receptor site.
It is now generally accepted that the estrogens must have a phenolic moiety for binding, but some investigators propose that the receptor may be flexible enough to accommodate varying distances between the two key hydroxyls. This point about estrogens needing a phenolic ring for high-affinity binding to the ER is critical. Steroids with a phenolic A ring and related phenolic compounds lack high-affinity binding to the other steroid hormone receptors.

Allgemeine Beschreibung

Odorless tasteless white crystalline powder.

Air & Water Reaktionen

Insoluble in water.

Reaktivität anzeigen

Diethylstilbestrol is incompatible with strong oxidizing agents, strong bases, acid chlorides and acid anhydrides .


Flash point data for Diethylstilbestrol are not available; however, Diethylstilbestrol is probably combustible.


These include sodium retention and oedema,nausea,gynaecomastia and impotence in men, and venous and arterial thrombosis. It can cause bone pain and hypercalcaemia when used for breast cancer.


Confirmed carcinogen producing skin, liver, and lung tumors in exposed humans as well as uterine and other reproductive system tumors in the female offspring of exposed women. Experimental carcinogenic, neoplas tigenic, tumorigenic, and teratogenic data. A transplacental carcinogen. A human teratogen by many routes. Poison by intraperitoneal and subcutaneous routes. It causes glandular system effects by sktn contact. Human reproductive effects by ingestion: abnormalspermatogenesis; changes in testes, epididymis, and sperm duct; menstrual cycle changes or disorders; changes in female ferulity; unspecified maternal effects; developmental abnormalities of the fetal urogenital system; germ cell effects in offspring; and delayed effects in newborn. Implicated in male impotence and enlargement of male breasts. Other experimental reproductive effects. Mutation data reported. When heated to decomposition it emits acrid smoke and fumes. See also ETHINYL ESTRADIOL.


Diethylstilbestrol is known to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in humans.

Diethylstilbestrol Upstream-Materialien And Downstream Produkte


Downstream Produkte

Diethylstilbestrol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 256)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21807 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 22623 55
Hubei XinRunde Chemical Co., Ltd.
02783214688 CHINA 568 55
Nanjing Finetech Chemical Co., Ltd.
025-85710122 17714198479
025-85710122 CHINA 890 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038 CHINA 3623 58
career henan chemical co
+86-371-86658258 CHINA 30032 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28230 58
Hubei xin bonus chemical co. LTD
027-59338440 CHINA 23040 58
Hebei shuoxi biotechnology co. LTD
whatsapp:+8613081092107 CHINA 974 58
86-18523575427 CHINA 47486 58

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