17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether

CAS72-33-3

17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether (CAS 72-33-3, C21H26O2) is supplied by ChemSigma for research and manufacturing, with specification, analytical methods and batch documentation available on request.

Chemical structure of 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether
C21H26O2 · 310.43 g/mol
CAS No.
72-33-3
Formula
C21H26O2
Mol. weight
310.43 g/mol

Chemical Specifications

Identifiers

CAS number 72-33-3
Product name 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether
Chinese name 美雌醇
Synonyms (+)-17-alpha-ethynyl-17-beta-hydroxy-3-methoxy-1,3,5(10)-estratriene
Chinese synonyms 炔雌醇甲醚; 美雌醇; 甲硫氨酸; 17Α-乙炔雌二醇 3-甲醚; 17Α-乙炔基-1,3,5(10)-雌三烯-3,17Β-二醇 3-甲醚; 3-甲氧基-17Α-乙炔雌二醇
Molecular formula C21H26O2
Molecular weight 310.43 g/mol
EC number 200-777-8

Physical and chemical properties

Melting Point 150-154 ( ℃ )
Boiling Point 224.1 ( ℃ )

Applications

<TABLE style="TABLE-LAYOUT: fixed" cellSpacing=1 cellPadding=2 width="100%" bgColor=#d5d5d5 border=0> <TBODY> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>mp&nbsp;</TD> <TD bgColor=#fafafa><FONT color=#0066cc>153-155&nbsp;°C(lit.)<BR></FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>Merck&nbsp;</TD> <TD bgColor=#ffffff><FONT color=#0066cc>5917</FONT></TD></TR></TBODY></TABLE> <TABLE style="TABLE-LAYOUT: fixed" cellSpacing=1 cellPadding=2 width="100%" bgColor=#d5d5d5 border=0> <TBODY> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Chemical Properties</TD> <TD bgColor=#fafafa><FONT color=#0066cc>Crystalline Solid</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>Usage</TD> <TD bgColor=#ffffff><FONT color=#0066cc>Orally active estrogenic steroid. It was the estrogen used in many of the first oral contraceptives</FONT></TD></TR></TBODY></TABLE>

Packaging, Storage & Transport

Available pack sizes 5kg, 1kg, 500g, 100g, 50g, 10g

Read the current safety data sheet before handling. Packaging can be adapted to the order quantity and destination.

Frequently Asked Questions

What is the CAS number of 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether?

The CAS Registry Number of 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether is 72-33-3. 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether is also known as (+)-17-alpha-ethynyl-17-beta-hydroxy-3-methoxy-1,3,5(10)-estratriene.

What is the molecular formula and molecular weight of 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether?

The molecular formula of 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether is C21H26O2, and its molecular weight is 310.43 g/mol.

What is 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether used for?

<TABLE style="TABLE-LAYOUT: fixed" cellSpacing=1 cellPadding=2 width="100%" bgColor=#d5d5d5 border=0> <TBODY> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>mp&nbsp;</TD> <TD bgColor=#fafafa><FONT color=#0066cc>153-155&nbsp;°C(lit.)<BR></FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>Merck&nbsp;</TD> <TD bgColor=#ffffff><FONT color=#0066cc>5917</FONT></TD></TR></TBODY></TABLE> <TABLE style="TABLE-LAYOUT: fixed" cellSpacing=1 cellPadding=2 width="100%" bgColor=#d5d5d5 border=0> <TBODY> <TR class=ProdSupplierGN_ProductA_1> <TD class=td12>Chemical Properties</TD> <TD bgColor=#fafafa><FONT color=#0066cc>Crystalline Solid</FONT></TD></TR> <TR class=ProdSupplierGN_ProductA_2> <TD bgColor=#ffffff>Usage</TD> <TD bgColor=#ffffff><FONT color=#0066cc>Orally active estrogenic steroid. It was the estrogen used in many of the first oral contraceptives</FONT></TD></TR></TBODY></TABLE>

How can I request a quotation for 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether?

Send an inquiry for 17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diol 3-methyl ether (CAS 72-33-3) with the required quantity, target specification, destination country and any documentation requirements. ChemSigma will confirm availability, packaging, lead time and price.

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