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

S-(Carboxymethyl) -L-Cysteine, kana yakaomeswa, ine kwete pasi pe98.5 muzana uye kwete kupfuura 101.0 muzana yeS-(Carboxymethyl) -L-Cysteine ​​(C5H9NO4S).
Tsanangudzo: Makristasi machena kana crystalline poda, zvishoma acid kuravira.
Kunyanya kunyungudika mumvura, isinganyungudika mu ethanol uye mu glacial acetic acid uye mu ether.Inonyungudika mu dilute hydrochloric acid uye mu sodium hydroxide TS.
Solubility (H2O, g/100g): 0.13 (20℃)
Kuzivikanwa: Enzanisa infrared absorption spectrum yemuenzaniso neiyo yechiyero ne potassium bromide disc nzira.
Kutenderera kwakananga [α]20/D: Sample yakaomeswa, C=10, pH6.0.Mushure mekuomesa sampuli, tora inenge 5g yemuenzaniso.kunyatsoyerwa, kunyungudika mu 20ml yemvura uye sodium hydroxide solution (13 → 100).Mushure me pH kugadzirisa 6.0 ne 1mol/L kana 0.1mol/L hydrochloric acid TS, wobva wawedzera mvura kune 50ml nemazvo.
State of Solution (Transmittance): 1.0g mu10ml ye1mol/L NaOH, spectrophotometer, 430nm, 10mm sero ukobvu.
Chloride (Cl): 0.36g, A-2, ref: 0.40ml ye0.01mol/L HCl
Ammonium (NH4): A-1
Sulfate (SO4): 1.2g, (2), ref: 0.50ml ye0.005mol/L H2SO4
Simbi (Fe): 0.5g, (2), ref: 1.5ml yeIron Std.(0.01mg/ml)
Heavy Metals (Pb): 2.0g, (2), ref: 2.0ml yePb Std.(0.01mg/ml)
Arsenic (As2O3): 2.0g, (3), ref: 2.0ml yeAs2O3 Std.
Mamwe Amino Acids: 0.2mol / L NaOH, bvunzo Muenzaniso: 75μg, B-2-a kutonga;S-(Carboxymethyl)-L-Cysteine ​​0.15μg.Mushure mokunge imwe neimwe yemhinduro yakaonekwa pandiro, ndiro inogadzirwa kamwechete
Kurasikirwa paKuomesa: pa105 ℃ kwemaawa matatu
Residue paIgnition (Sulfated): AJI Muedzo 13
Chiyero: Muenzaniso wakaoma, 180mg, 0.1mol/L HCLO4 1ml = 17.920mg C5H9NO4S.Dissolve nezve 180mg yemuenzaniso, yakamboomeswa uye yakayerwa nemazvo, mukati3ml yefomic acid, wedzera chaizvo 15ml ye0.1mol/L perchloric acid, uye 50ml yeglacial acetic acid, uye titrate yakawandisa perchloric acid ne0.1mol/L sodium acetate,sarudza iyo yekupedzisira potentiometrically.Ita chisungo chisina chinhu, uye ita ruramiso inodiwa.Imwe neimwe ml ye0.1mol/L perchloric acid yakaenzana ne17.920mg yeC5H9NO4S.
pH: 1.0g mu10ml (Yakazara aqueous mhinduro)
Inokurudzirwa kuchengetedza muganho uye mamiriro: Yakachengetedzwa midziyo yakasimba painodzorwa tembiricha yekamuri (2 makore).