{"id":49303,"date":"2024-05-28T17:40:53","date_gmt":"2024-05-28T09:40:53","guid":{"rendered":"http:\/\/www.newtopchem.com\/archives\/49303"},"modified":"2024-05-28T17:40:53","modified_gmt":"2024-05-28T09:40:53","slug":"l-cystathionine","status":"publish","type":"post","link":"http:\/\/www.newtopchem.com\/archives\/49303","title":{"rendered":"L-cystathionine","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-49302\" src=\"http:\/\/www.newtopchem.com\/wp-content\/uploads\/2024\/05\/c6e57f2827ea4a9f83d581b6581f09ae.gif\" width=\"323\" height=\"227\" alt=\"L-cystathionine structural formula\" \/><\/p>\n<p>Structural formula<\/p>\n<table class=\"summary-table table table-striped table-bordered\">\n<col width=\"90\" \/>\n<tbody>\n<tr>\n<th scope=\"row\">Business number<\/th>\n<td>0182<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Molecular formula<\/th>\n<td>C7H14N2O4S<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Molecular weight<\/th>\n<td>222.26<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">label<\/th>\n<td>\n<p>                         (R)-S-(2-amino-2-carboxyethyl)-L-cysteine,<\/p>\n<p>                         (R)-S-(2-Amino-2-carboxyethyl)-L-homocysteine<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul class=\"nav nav-tabs\">\n<li class=\"active\"><a href=\"#bh\">Numbering system<\/a><\/li>\n<li><a href=\"#wx\">Physical property data<\/a><\/li>\n<li><a href=\"#dl\">Toxicological data<\/a><\/li>\n<li><a href=\"#st\">Ecological data<\/a><\/li>\n<li><a href=\"#fz\">Molecular structure data<\/a><\/li>\n<li><a href=\"#js\">Computing chemical data<\/a><\/li>\n<li class=\"dropdown pull-right\">\n                     <a href=\"\" class=\"dropdown-toggle\">More <span class=\"caret\"><\/span><\/a><\/p>\n<ul class=\"dropdown-menu\" role=\"menu\">\n<li><a href=\"#xz\">Properties and Stability<\/a><\/li>\n<li><a href=\"#zc\">Storage method<\/a><\/li>\n<li><a href=\"#hc\">Synthesis method<\/a><\/li>\n<li><a href=\"#yt\">Purpose<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2 id=\"bh\">Numbering system<\/h2>\n<p><b>CAS number:<\/b>56-88-2<\/p>\n<p><b>MDL number:<\/b>MFCD00036685<\/p>\n<p><b>EINECS number:<\/b>200-295-8<\/p>\n<p><b>RTECS number:<\/b>None<\/p>\n<p><b>BRN number:<\/b>2505200<\/p>\n<p><b>PubChem number:<\/b>24892965<\/p>\n<h2 id=\"wx\">Physical property data<\/h2>\n<p>\n     <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>1.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Character: Crystal.  <\/SPAN><SPAN> <SPAN><\/SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>2.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Density (<\/SPAN><SPAN>g\/mL,25\/4<\/SPAN><SPAN>\u2103)  \uff1a<\/SPAN><SPAN> <\/SPAN><SPAN>Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>3.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Relative vapor density (<\/SPAN><SPAN>g\/mL,<\/SPAN><SPAN>AIR<\/SPAN><SPAN>=1<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>4.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Melting point (<\/SPAN><SPAN>\u00baC<\/SPAN><SPAN>): <\/SPAN><SPAN> <SPAN> <\/SPAN><SPAN>240<\/SPAN>  <\/SPAN><SPAN>\uff5e<\/SPAN><SPAN>250<\/SPAN><SPAN>\u2103\uff08<\/SPAN><SPAN>262<\/SPAN><SPAN>~<\/SPAN><SPAN>263<\/SPAN><SPAN>\u2103).  <\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>5.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Boiling point (<\/SPAN><SPAN>\u00baC,<\/SPAN><SPAN>Normal pressure): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>6.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Boiling point (<\/SPAN><SPAN>\u00baC,5.2kPa<\/SPAN><SPAN>): undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>7.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Refractive index: not  OK<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>8.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Flashpoint (<\/SPAN><SPAN>\u00baC<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>9.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Specific optical rotation (  <\/SPAN><SPAN>\u00ba<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>10.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Spontaneous ignition point or ignition  Combustion temperature (<\/SPAN><SPAN>\u00baC<\/SPAN><SPAN>): not  OK<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>11.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Vapor Pressure (<\/SPAN><SPAN>kPa,25\u00baC<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>12.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Saturated vapor pressure (<\/SPAN><SPAN>kPa,60\u00baC<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>13.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Heat of combustion (<\/SPAN><SPAN>KJ\/mol<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>14.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Critical temperature (<\/SPAN><SPAN>\u00baC<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>15.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Critical Pressure (<\/SPAN><SPAN>KPa<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>16.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Oil and water (octanol  <\/SPAN><SPAN>\/<\/SPAN><SPAN>Water) partition coefficient pair  Value: Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>17.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Explosion limit (<\/SPAN><SPAN>%,V\/V<\/SPAN><SPAN>): Undetermined<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>18.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Lower explosion limit (<\/SPAN><SPAN>%,V\/V<\/SPAN><SPAN>): not  OK<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>19.<SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Solubility: Not available  Sure.  <\/SPAN><SPAN> <SPAN><\/SPAN>  <\/SPAN><\/P>\n     <\/p>\n<h2 id=\"dl\">Toxicological data<\/h2>\n<p>\n     None yet\n     <\/p>\n<h2 id=\"st\">Ecological data<\/h2>\n<p>\n     None yet\n     <\/p>\n<h2 id=\"fz\">Molecular structure data<\/h2>\n<p>\n     <P class=\"MsoNormal\" align=\"left\"><SPAN>5. Molecular property data:<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>1. <SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Molar refractive index: <\/SPAN>  <SPAN>52.59<\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>2. <SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Molar volume (<\/SPAN><SPAN>m<SUP>3<\/SUP>\/mol<\/SPAN><SPAN>\uff09\uff1a<\/SPAN><SPAN>155.4<\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>3. <SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Isotonic specific volume (<\/SPAN><SPAN>90.2K<\/SPAN><SPAN>):<\/SPAN><SPAN>457.7  <\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>4. <SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Surface Tension (<\/SPAN><SPAN>dyne\/cm<\/SPAN><SPAN>):<\/SPAN><SPAN>75.2<\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>5. <SPAN> <\/SPAN><\/SPAN><\/SPAN><SPAN>Polarizability<\/SPAN><SPAN>\uff08<\/SPAN><SPAN>10<SUP>-24<\/SUP>cm<SUP>3<\/SUP><\/SPAN><SPAN>): <\/SPAN><SPAN>20.84<\/SPAN><\/P>\n     <\/p>\n<h2 id=\"js\">Compute chemical data<\/h2>\n<p>\n     <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>1. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Reference value for hydrophobic parameter calculation (<SPAN>XlogP<\/SPAN>):  <SPAN>-6<\/SPAN><\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>2. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Number of hydrogen bond donors: <SPAN>4<\/SPAN><\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>3. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Number of hydrogen bond acceptors: <SPAN>6<\/SPAN><\/SPAN>  <SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>4. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Number of rotatable chemical bonds: <SPAN>7<\/SPAN><\/SPAN>  <SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>5. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Number of tautomers:<\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>6. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Topological molecular polar surface area (<SPAN>TPSA<\/SPAN>):<SPAN>127<\/SPAN><\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>7. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Number of heavy atoms: <SPAN>14<\/SPAN><\/SPAN><SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>8. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Surface charge: <SPAN>0<\/SPAN><\/SPAN><SPAN>  <\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>9. <SPAN> <\/SPAN><\/SPAN><\/SPAN>  <SPAN>Complexity: <SPAN>212<\/SPAN><\/SPAN><SPAN>  <\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>10. <\/SPAN><\/SPAN><SPAN>Number of isotope atoms: <SPAN>0<\/SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>11. <\/SPAN><\/SPAN><SPAN>Determine the number of atomic stereocenters:  <SPAN>2<\/SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>12. <\/SPAN><\/SPAN><SPAN>The number of uncertain atomic stereocenters: <SPAN>0<\/SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>13. <\/SPAN><\/SPAN><SPAN>Determine the number of stereocenters of chemical bonds: <SPAN>0<\/SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>14. <\/SPAN><\/SPAN><SPAN>Uncertain number of chemical bond stereocenters: <SPAN>0<\/SPAN><\/SPAN><\/P><br \/>\n <P class=\"MsoNormal\" align=\"left\"><SPAN><SPAN>15. <\/SPAN><\/SPAN><SPAN>Number of covalent bond units: <SPAN>1<\/SPAN><\/SPAN><\/P>\n     <\/p>\n<h2 id=\"xz\">Properties and stability<\/h2>\n<p>\n     None yet\n     <\/p>\n<h2 id=\"zc\">Storage method<\/h2>\n<p>\n     <P class=\"MsoNormal\"><SPAN>This product should be kept sealed.  <\/SPAN><SPAN><\/SPAN><\/P>\n     <\/p>\n<h2 id=\"hc\">Synthesis method<\/h2>\n<p>\n     <P class=\"MsoNormal\"><SPAN>Generated by the interaction of o-succinyl homoserine and cysteine.  Cystathionine is cystathionine beta<\/SPAN><SPAN>&#8211;<\/SPAN><SPAN>Lyase removes pyruvate and <\/SPAN><SPAN>NH3<\/SPAN><SPAN>generates homocysteine.  <\/SPAN><SPAN><\/SPAN><\/P>\n     <\/p>\n<h2 id=\"yt\">Purpose<\/h2>\n<p>\n     <SPAN> <\/SPAN><SPAN> <\/SPAN><SPAN>For biochemical research.<\/SPAN><SPAN><SPAN> <\/SPAN><\/SPAN>\n     <\/p>\n<p>     extended-reading:<a href=\"https:\/\/www.newtopchem.com\/archives\/44415\">https:\/\/www.newtopchem.com\/archives\/44415<\/a><\/br>extended-reading:<a href=\"https:\/\/www.morpholine.org\/cas-616-47-7\/\">https:\/\/www.morpholine.org\/cas-616-47-7\/<\/a><\/br>extended-reading:<a href=\"https:\/\/www.bdmaee.net\/dabco-rp202-catalyst-cas31506-44-2-evonik-germany\/\">https:\/\/www.bdmaee.net\/dabco-rp202-catalyst-cas31506-44-2-evonik-germany\/<\/a><\/br>extended-reading:<a href=\"https:\/\/www.bdmaee.net\/tributyltin-chloride-cas1461-22-9-tri-n-butyltin-chloride\/\">https:\/\/www.bdmaee.net\/tributyltin-chloride-cas1461-22-9-tri-n-butyltin-chloride\/<\/a><\/br>extended-reading:<a href=\"https:\/\/www.cyclohexylamine.net\/foaming-catalyst-foaming-catalyst-blx-11\/\">https:\/\/www.cyclohexylamine.net\/foaming-catalyst-foaming-catalyst-blx-11\/<\/a><\/br>extended-reading:<a href=\"https:\/\/www.newtopchem.com\/archives\/855\">https:\/\/www.newtopchem.com\/archives\/855<\/a><\/br>extended-reading:<a href=\"https:\/\/www.bdmaee.net\/4-acetyl-morpholine\/\">https:\/\/www.bdmaee.net\/4-acetyl-morpholine\/<\/a><\/br>extended-reading:<a href=\"https:\/\/www.newtopchem.com\/archives\/category\/products\/page\/109\">https:\/\/www.newtopchem.com\/archives\/category\/products\/page\/109<\/a><\/br>extended-reading:<a href=\"https:\/\/www.newtopchem.com\/archives\/44707\">https:\/\/www.newtopchem.com\/archives\/44707<\/a><\/br>extended-reading:<a href=\"https:\/\/www.cyclohexylamine.net\/tertiary-amine-catalyst-xd-103-catalyst-xd-103\/\">https:\/\/www.cyclohexylamine.net\/tertiary-amine-catalyst-xd-103-catalyst-xd-103\/<\/a><\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Structural formula Business number 0182 Molecular formu&#8230;<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":49302,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[6],"tags":[15434],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/49303"}],"collection":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/comments?post=49303"}],"version-history":[{"count":0,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/posts\/49303\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media\/49302"}],"wp:attachment":[{"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/media?parent=49303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/categories?post=49303"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.newtopchem.com\/wp-json\/wp\/v2\/tags?post=49303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}