CAS 56-53-1: Diethylstilbestrol

Description: Diethylstilbestrol (DES) is a synthetic nonsteroidal estrogen that was first synthesized in the 1930s. It is characterized by its chemical structure, which consists of two ethyl groups attached to a stilbene backbone, making it a member of the stilbestrol family. DES is a white crystalline powder that is poorly soluble in water but soluble in organic solvents. It was historically used in medicine to prevent pregnancy complications and treat certain cancers, but its use has been largely discontinued due to significant health risks. Notably, DES exposure during pregnancy has been linked to a range of adverse effects in offspring, including reproductive tract abnormalities and increased cancer risk. The substance has a relatively long half-life in the body, which contributes to its prolonged effects. Due to its endocrine-disrupting properties, DES is classified as a hazardous substance, and its use is strictly regulated in many countries. Its legacy continues to influence discussions on hormone therapies and the safety of synthetic estrogens in medicine.

Formula: C₁₈H₂₀O₂

InChI: InChI=1S/C18H20O2/c1-3-17(13-5-9-15(19)10-6-13)18(4-2)14-7-11-16(20)12-8-14/h5-12,19-20H,3-4H2,1-2H3/b18-17+

InChI key: InChIKey=RGLYKWWBQGJZGM-ISLYRVAYSA-N

SMILES: OC1=CC=C(C=C1)C(=C(C2=CC=C(O)C=C2)CC)CC

Synonyms:

• (E)-3,4-Bis(4-hydroxyphenyl)-3-hexene
• (E)-4,4'-(1,2-Diethyl-1,2-ethenediyl)bisphenol
• (E)-Diethylstilbestrol
• 4,4'-(3E)-hex-3-ene-3,4-diyldiphenol
• 4,4'-(3Z)-hex-3-ene-3,4-diyldiphenol
• 4,4'-Dihydroxy-α,β-diethylstilbene
• 4,4'-Dihydroxydiethylstilbene
• 4,4'-Stilbenediol, α,α'-diethyl-, (E)-
• 4,4'-Stilbenediol, α,α'-diethyl-, trans-
• 4,4′-[(1E)-1,2-Diethyl-1,2-ethenediyl]bis[phenol]
• Agostilben
• Antigestil
• Atovaquone
• Bertrol
• Bio-des
• Bufon
• Comestrol
• Cyren
• Cyren A
• DEB
• DES
• DES (synthetic estrogen)
• Dawe's destrol
• Dawe's destrol solution
• Di-Estryl
• DiBestrol 2 Premix
• Diethylstilbesterol
• Diethylstilbestrol BP
• Diethylstilbestrol, Mixture Of Cis And Trans
• Dietilestilbestrol
• Distilbene
• Domestrol
• Estilbin MCO
• Estrobene
• Estrogenine
• Estromenin
• Estrosyn
• Fonatol
• Grafestrol
• Hi-Bestrol
• Iscovesco
• Menostilbeen
• Microest
• Milestrol
• Neo-Oestranol I
• Nsc 3070
• Oestrogenine
• Oestromenin
• Oestromensyl
• Oestromon
• Pabestrol
• Palestrol
• Phenol, 4,4'-(1,2-diethyl-1,2-ethenediyl)bis-, (E)-
• Phenol, 4,4'-[(1E)-1,2-diethyl-1,2-ethenediyl]bis-
• Rumestrol 1
• Rumestrol 2
• Serral
• Sexocretin
• Sibol
• Stil
• Stil-Rol
• Stilbestrol
• Stilbetin
• Stilboefral
• Stilboestroform
• Stilboestrol
• Stilkap
• Synestrin
• Synthoestrin
• Synthofolin
• Syntofolin
• Vagestrol
• a,a-Diethyl-4,4-Stilbenediol Carc.
• trans-4,4'-Dihydroxy-α,β-diethylstilbene
• trans-Diethylstilbestrol
• trans-α,α'-Diethyl-4,4'-stilbenediol
• trans-α,α′-Diethyl-4,4′-dihydroxystilbene
• α,α'-Diethyl-4,4'-stilbenediol
• α,α'-Diethylstilbenediol

Diethylstilbestrol

CAS: 56-53-1

• Formula: C₁₈H₂₀O₂
• Purity: 99.4%
• Color and Shape: White Solid
• Molecular weight: 268.14633

Diethylstilbestrol

CAS: 56-53-1

Polyphenols, nesoi

• Formula: C₁₈H₂₀O₂
• Color and Shape: White Powder
• Molecular weight: 268.14633

Diethylstilbestrol

CAS: 56-53-1

Diethylstilbestrol (DES) is used in the treatment of menopausal and postmenopausal disorders.

• Formula: C₁₈H₂₀O₂
• Purity: 97.77% - 98.78%
• Color and Shape: White Crystalline Powder Physical Description Odorless Tasteless White Crystalline Powder (Ntp 1992)
• Molecular weight: 268.35

Diethylstilbestrol

CAS: 56-53-1

• Formula: C₁₈H₂₀O₂
• Molecular weight: 268.35

Diethylstilbestrol

CAS: 56-53-1

• Formula: C₁₈H₂₀O₂
• Color and Shape: Off-White Solid
• Molecular weight: 268.36

GB 31660.2-2019 Antibiotics Mixture 168 30-100 µg/mL in Methanol

CAS: 140-66-9 25154-52-3 50-27-1 50-28-2 53-16-7 56-53-157-63-6 80-05-7

• Color and Shape: Mixture

Diethylstilbestrol, 99%

CAS: 56-53-1

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₁₈H₂₀O₂
• Purity: 99%
• Color and Shape: White to off-white, Crystalline powder
• Molecular weight: 268.36

Diethylstilbestrol

CAS: 56-53-1

• Formula: C₁₈H₂₀O₂
• Color and Shape: White To Off-White
• Molecular weight: 268.35

Diethylstilbestrol

CAS: 56-53-1

• Formula: C₁₈H₂₀O₂
• Color and Shape: Neat
• Molecular weight: 268.35

Diethyl stilbestrol

CAS: 56-53-1

• Purity: 95.0%
• Color and Shape: Solid
• Molecular weight: 268.3559875488281

trans-Diethyl Stilbestrol

CAS: 56-53-1

Stability And Ether., Chloroform, Isomerizes Rapidly In Benzene Applications A synthetic, nonsteroidal estrogen.Recomended solvents are …

• Formula: C₁₈H₂₀O₂
• Color and Shape: White To Off-White
• Molecular weight: 268.35

Diethylstilbestrol

CAS: 56-53-1

Diethylstilbestrol is a synthetic hormone that belongs to the class of steroids. It is used …

• Formula: C₁₈H₂₀O₂
• Purity: Min. 95%
• Color and Shape: Powder
• Molecular weight: 268.35 g/mol