S-(Carboxymethyl)-L-Cysteine ​​CAS 638-23-3 (Carbocisteine) Hōʻike 98.5~101.0%

ʻO S-(Carboxymethyl) -L-Cysteine, ke maloʻo, ʻaʻole i emi iho ma lalo o 98.5 pākēneka a ʻaʻole ʻoi aku ma mua o 101.0 pākēneka o S-(Carboxymethyl) -L-Cysteine ​​​​(C5H9NO4S).
Wehewehe: ʻO nā keʻokeʻo keʻokeʻo a i ʻole ka pauka crystalline, ʻono iki ka ʻakika.
Hiki ke hoʻoheheʻe ʻia i loko o ka wai, ʻaʻole hiki ke hoʻoheheʻe ʻia i ka ethanol a me ka glacial acetic acid a me ka etera.Hoʻoheheʻe ʻia i loko o ka dilute hydrochloric acid a me ka sodium hydroxide TS.
Solubility (H2O, g/100g): 0.13 (20 ℃)
ʻIke: E hoʻohālikelike i ka spectrum absorption infrared o ka hāpana me ke ʻano maʻamau ma ke ʻano pāpaʻi pāpaʻi bromide.
Ka Po'i Pono [α]20/D: La'ana malo'o, C=10, pH6.0.Ma hope o ka maloʻo ʻana i ka hāpana, e lawe ma kahi o 5g o ka hāpana.paona pono, hoʻoheheʻe i loko o 20ml o ka wai a me ka sodium hydroxide solution (13→100).Ma hope o ka pH hoʻololi i 6.0 me 1mol/L a i ʻole 0.1mol/L hydrochloric acid TS, a laila hoʻohui i ka wai i ka 50ml pololei.
Moku'āina o ka Solution (Transmittance): 1.0g i 10ml o 1mol/L NaOH, spectrophotometer, 430nm, 10mm ka mānoanoa pūnaewele.
Klorida (Cl): 0.36g, A-2, ref: 0.40ml o 0.01mol/L HCl
Ammonium (NH4): A-1
Sulfate (SO4): 1.2g, (2), ref: 0.50ml o 0.005mol/L H2SO4
Hao (Fe): 0.5g, (2), ref: 1.5ml o Iron Std.(0.01mg/ml)
Nā Metala Kaumaha (Pb): 2.0g, (2), ref: 2.0ml o Pb Std.(0.01mg/ml)
Arsenic (As2O3): 2.0g, (3), ref: 2.0ml o As2O3 Std.
Nā Amino Acids ʻē aʻe: 0.2mol / L NaOH, hōʻike Laʻana: 75μg, B-2-a mana;S-(Carboxymethyl)-L-Cysteine ​​0.15μg.Ma hope o ka ʻike ʻia ʻana o kēlā me kēia hopena ma ka pā, hoʻomohala ʻia ka pā i ka manawa hoʻokahi
Nalo ma ka maloʻo: ma 105 ℃ no 3 mau hola
Ke koena ma ka ʻāʻā (Sulfated): AJI Test 13
Ho'āʻo: Lapana maloʻo, 180mg, 0.1mol/L HCLO4 1ml=17.920mg C5H9NO4S.E hoʻoheheʻe ma kahi o 180mg o ka hāpana, i hoʻomaloʻo mua ʻia a kaupaona pololei ʻia, i loko3ml o ka waika formic, e hoonui pono i ka 15ml o 0.1mol/L perchloric acid, a me 50ml o ka waika acetic glacial, a e hooemi i ka waika perchloric keu me 0.1mol/L sodium acetate,ka hoʻoholo ʻana i ka endpoint potentiometrically.Hana i kahi hoʻoholo hakahaka, a hoʻoponopono pono.ʻO kēlā me kēia ml o 0.1mol/L perchloric acid ua like ia me 17.920mg o C5H9NO4S.
pH: 1.0g i ka 10ml (Hoʻoheheʻe wai piha)
Manaʻo ʻia ka palena o ka waiho ʻana a me ke kūlana: ʻO nā pahu paʻa paʻa i mālama ʻia ma ka lumi wela (2 mau makahiki).