Diethylstilbestrol, ≥99% (HPLC)

Name: Diethylstilbestrol, ≥99% (HPLC)
Brand: Vaqora Chemicals
SKU: VQ-010197

About Diethylstilbestrol, ≥99% (HPLC)

Diethylstilbestrol (CAS 56-53-1) is a phenolic building block offered by Vaqora Chemicals at a purity of ≥99%. Formula C18H20O2, molecular weight 268.3 g/mol. The IUPAC name is 4-[(E)-4-(4-hydroxyphenyl)hex-3-en-3-yl]phenol. Alternative names: (E)-3,4-Bis(4-hydroxyphenyl)-3-hexene and DES.

It is supplied as a white to off-white powder. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Typical applications include organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 1 g, 5 g, 10 g and 25 g, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Organic synthesis
API synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Diethylstilbestrol, ≥99% (HPLC)
Catalogue No.	VQ-010197
CAS Number	56-53-1
IUPAC name	4-[(E)-4-(4-hydroxyphenyl)hex-3-en-3-yl]phenol
Molecular formula	C₁₈H₂₀O₂
Molecular weight	268.3 g/mol
Exact mass	268.1463
Purity / assay	≥99%
HSN code	29242990
InChIKey	RGLYKWWBQGJZGM-ISLYRVAYSA-N
SMILES	CC/C(=C(/CC)\C1=CC=C(C=C1)O)/C2=CC=C(C=C2)O
PubChem CID	448537

Physical properties
Physical form	Powder
Appearance	White to off-white powder
LogP (XLogP3)	5.1
H-bond donors / acceptors	2 / 2
TPSA	40.5 Å²
Synonyms	(E)-3,4-Bis(4-hydroxyphenyl)-3-hexene, DES, Stilbestrol, Stilboestrol, Distilbene, Estrobene, Stilbetin, Estromenin, Vagestrol, Dietilestilbestrol, Comestrol, Domestrol

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Environmental hazard

Signal word: Danger

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H350May cause cancer
H360May damage fertility or the unborn child
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary statements: P203, P261, P264, P264 + P265, P271, P273, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P332 + P317, P337 + P317, P362 + P364, P391, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Diethylstilbestrol, ≥99% (HPLC)?

The CAS Registry Number of Diethylstilbestrol, ≥99% (HPLC) is 56-53-1. It is also known as (E)-3,4-Bis(4-hydroxyphenyl)-3-hexene, DES, Stilbestrol.

What is the molecular formula and molecular weight of Diethylstilbestrol, ≥99% (HPLC)?

Diethylstilbestrol, ≥99% (HPLC) has the molecular formula C18H20O2 and a molecular weight of 268.3 g/mol. Its IUPAC name is 4-[(E)-4-(4-hydroxyphenyl)hex-3-en-3-yl]phenol.

Which grade and pack sizes of Diethylstilbestrol, ≥99% (HPLC) can I order?

We supply Diethylstilbestrol, ≥99% (HPLC) in (≥99%) grade, in 1 g, 5 g, 10 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Diethylstilbestrol, ≥99% (HPLC)?

Yes. Every lot of Diethylstilbestrol, ≥99% (HPLC) is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Diethylstilbestrol, ≥99% (HPLC) be shipped internationally?

Yes. Diethylstilbestrol, ≥99% (HPLC) is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.