3-Mercapto-1-propanesulfonic acid

3-Mercapto-1-propanesulfonic acid is a chemical compound often used as a brightener in copper electroplating.^[2]

3-Mercapto-1-propanesulfonic acid

Names
Preferred IUPAC name 3-Sulfanylpropane-1-sulfonic acid
Other names 3-Mercaptopropane-1-sulfonic acid (no longer recommended[1]) 3-Mercaptopropanesulphonic acid
Identifiers
CAS Number	49594-30-1 Y
3D model (JSmol)	Interactive image
ChemSpider	78667 Y
ECHA InfoCard	100.051.249
PubChem CID	87206
UNII	TYH54NG95Y Y
CompTox Dashboard (EPA)	DTXSID5068499
InChI InChI=1S/C3H8O3S2/c4-8(5,6)3-1-2-7/h7H,1-3H2,(H,4,5,6) Y Key: OBDVFOBWBHMJDG-UHFFFAOYSA-N Y InChI=1/C3H8O3S2/c4-8(5,6)3-1-2-7/h7H,1-3H2,(H,4,5,6) Key: OBDVFOBWBHMJDG-UHFFFAOYAO
SMILES O=S(=O)(O)CCCS
Properties
Chemical formula	C3H8O3S2
Molar mass	156.21 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

References

1. Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 697. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4. The prefixes 'mercapto' (–SH), and 'hydroseleno' or selenyl (–SeH), etc. are no longer recommended.
2. Dow, Wei-Ping; Her-Shu Huang; Zack Lin (2003-06-30). "Interactions Between Brightener and Chloride Ions on Copper Electroplating for Laser-Drilled Via-Hole Filling". Electrochemical and Solid-State Letters. 6 (9). The Electrochemical Society: 134–136. doi:10.1149/1.1595311. Retrieved 2009-08-14.