L-Cystine CAS 56-89-3 (H-Cys-OH)2 Nyocha 98.5 ~ 101.0% (Titration) Ụlọ ọrụ dị elu
Shanghai Ruifu Chemical Co., Ltd bụ onye na-emepụta ihe na onye na-ebubata L-Cystine, (H-Cys-OH) 2, (CAS: 56-89-3) na elu mma.Dị ka otu n'ime ndị na-ebunye amino asịd kasị ukwuu na China, Ruifu Chemical na-arụpụta amino asịd na ihe nrụpụta tozuru oke ruo ụkpụrụ mba ụwa, dị ka AJI, USP, EP, na ọkọlọtọ FCC.Anyị nwere ike ịnye nnyefe zuru ụwa ọnụ, obere na nnukwu ọnụọgụ dị.Ịzụta L-Cystin, Biko kpọtụrụ:alvin@ruifuchem.com
| Aha Chemical | L-cystin |
| Ụdị okwu | L (-) - cystine;(H-Cys-OH) 2;Laevo-cystin;(-) - cystine;(-) -3,3'-Dithiobis (2-Aminopropanoic Acid);3,3'-Dithiobis-L-Alanine |
| Ọnọdụ Ahịa | N'ahịa, ikike nrụpụta 2000 Tọn kwa afọ |
| Nọmba CAS | 56-89-3 |
| Usoro ihe omimi | C6H12N2O4S2 |
| Ibu molekụla | 240.29 |
| Ebe Na-agbaze | > 240 ℃ (dc.) (ọkụ) |
| Ebe esi nri | 468.2 ± 45.0 ℃ |
| Njupụta | 1.68 |
| Solubility | Na-adịghị edozi na mmiri, ethanol na ether.Na-agbaze n'ime mmiri hydrochloric acid |
| Solubility na HCl | Ihe fọrọ nke nta ka ọ bụrụ nghọta |
| Okpomọkụ nchekwa. | Edechiri ya na nkụ, na-echekwa na okpomọkụ ụlọ |
| COA & MSDS | Dị |
| Nhazi | Amino Acids na mmepụta |
| Ụdị | Ruifu Chemical |
| Koodu egwu | Xi,Xn | RTECS | HA 2690000 |
| Nkwupụta ihe egwu | 36/37/38-22 | Ihe edeturu egwu | Iwe iwe |
| Nkwupụta nchekwa | 26-36-24/25 | TSCA | Ee |
| RIDADR | 2811 | Otu nkwakọ ngwaahịa | III |
| WGK Germany | 3 | Koodu HS | 2930901000 |
| Ihe | Ụkpụrụ nyocha | Nsonaazụ |
| Ọdịdị | kristal ọcha ma ọ bụ ntụ ntụ kristal, enweghị ụtọ | Dabara |
| njirimara | Infrared absorption Spectrum | Dabara |
| Ntụgharị a kapịrị ọnụ [α]20/D | -218.0° ruo -224.0°(C=2, 1N HCl) | -218.6° |
| Ọnọdụ Ngwọta (Nfefe) | Dị ọcha na enweghị agba ≥98.0% | 98.5% |
| Chloride (Cl) | ≤0.020% | <0.020% |
| Sulfate (SO4) | ≤0.020% | <0.020% |
| Ammonium (NH4) | ≤0.020% | <0.020% |
| Ígwè (Fe) | ≤10ppm | <10ppm |
| Ọla dị arọ (Pb) | ≤10ppm | <10ppm |
| Arsenic (As2O3) | ≤1.0pm | <1.0pm |
| Amino acid ndị ọzọ | Achọghị chromatographically | Dabara |
| Ọnwụ na ihicha | ≤0.20% | 0.10% |
| Ihe fọdụrụ na mgbanye | ≤0.10% | 0.04% |
| Nyocha | 98.5 ruo 101.0% (Titration: Anhydrous Basis) | 99.8% |
| Nnwale pH | 5.0 ruo 6.5 | 5.6 |
| Mmalite | Isi mmalite na-abụghị anụmanụ | Dabara |
| Ihe mgbaze fọdụrụnụ | Dabara | Dabara |
| Mmechi | Dị ka ọkọlọtọ nke AJI92 si dị;USP37 | |
| Ndụ shelf | Ọnwa 24 Site na ụbọchị nrụpụta ma ọ bụrụ na echekwara ya nke ọma | |
| Isi ojiji | Amino acids;Ihe mgbakwunye nri;Ndị na-ahụ maka ọgwụ | |
ngwugwu: Fluorinated karama, 25kg / akpa, 25kg / Cardboard Drum, ma ọ bụ dị ka ndị ahịa chọrọ.
Ọnọdụ Nchekwa:Chekwaa n'ime akpa mechiri emechi n'ụlọ nkwakọba ihe dị jụụ, kpọrọ nkụ na ikuku ikuku na-anọghị n'ihe na-ekwekọghị ekwekọ.Chebe site na ìhè na mmiri mmiri.
Nkọwa
Cystine nwere NLT 98.5% na NMT 101.5% nke C6H12N2O4S2, dị ka L-Cystine, gbakọọ na ntọala akpọnwụwo.
Nchọpụta
A. AKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWASỊ"197K>
B. OPTICAL ROTATION, Ntụgharị a kapịrị ọnụ <781S>: -215 ruo -225, kpebisiri ike na 20°
Ngwọta nlele: 20 mg/mL, na 1 N hydrochloric acid
C. Uru RF nke isi ntụpọ nke Sample ngwọta na ule maka Organic adịghị ọcha kwekọrọ na nke Standard ngwọta.
ASSAY
Usoro
Ngwọta nlele: Nyefee ihe dị ka 0.1 g nke Cystine na flask na-ekpuchi iko, ma gbazee na ngwakọta nke 2 ml nke sodium hydroxide dilute (1 n'ime 20) na 10 ml mmiri.Tinye 10 ml nke potassium bromide ngwọta (200 g / L na mmiri), 50.0 ml nke 0.1 N potassium bromate VS, na 15 ml nke dilute hydrochloric acid (17 na 100).
Tinye ngwa ngwa nkwụsi ike n'ime ite ahụ, ma dị jụụ n'ime mmiri ịsa mmiri ice.Kwe ka guzoro na nchekwa site na ọkụ maka nkeji iri.
Titrimetric usoro
(Lee Titrimetry <541>)
Ụdị: Titration fọdụrụnụ
Titrant: 0.1 N potassium bromate VS
Azụ-titrant: 0.1 N sodium thiosulfate VS
Nchọpụta njedebe: Colorimetric
Nhata: ml nke ọ bụla nke 0.1 N potassium bromate VS bụ 2.403 mg nke C6H12N2O4S2 na ntọala akpọnwụwo.
Nyocha: Tinye 1.5 g nke potassium iodide, na mgbe 1min gasịrị, titrate na 0.1 N sodium thiosulfate VS, na-eji starch TS dị ka ihe ngosi.Mee mkpebi efu, ma mee mgbazi ọ bụla dị mkpa.
Usoro nnabata: 98.5% ~ 101.5% na ntọala akpọnwụwo
IHE adịghị ọcha
Ihe adịghị ọcha
Ihe fọdụrụ na mgbanye <281>: NMT 0.1%
Chloride na sulfate, Chloride <221>: NMT 200 ppm.Akụkụ 0.7-g na-egosi na ọ nweghị chloride karịa kwekọrọ na 0.40 ml nke 0.01 N hydrochloric acid.
Chloride na sulfate, sulfate <221> NMT 200 ppm.Akụkụ 1.2g na-egosi enweghị sulfate karịa dabara na 0.25 ml nke 0.020 N sulfuric acid.
IRON <241>: NMT 10ppm
Ọla dị arọ, Usoro I <231>: NMT 10ppm
Ihe adịghị ọcha
Usoro
Ọkọlọtọ ngwọta: Gbanyụọ ọnụọgụ USP Cystin RS na 1 N hydrochloric acid, wee gbanye mmiri ka ị nweta ihe ngwọta na-enwe njiri mara nke ihe dịka 0.02 mg/mL.
Ngwọta ihe atụ: Gbarie otutu Cystin na 1 N hydrochloric acid, ma gbanye mmiri iji nweta ihe ngwọta na-enwe ntinye ama ama nke ihe dịka 10 mg / ml.
Ngwọta dabara adaba nke sistemu: Gbarie ọnụọgụ USP Cystin RS na USP Arginine Hydrochloride RS na 1 N hydrochloric acid, wee gbanye mmiri iji nweta ihe ngwọta nwere njiri mara nke ihe dịka 0.4 mg/mL nke ọ bụla.
Sistemu chromatographic (Lee Chromatography <621>, Chromatography nke dị obere.)
Ụdị: TLC
Adsorbent: 0.25-mm oyi akwa nke chromatographic silica gel ngwakọta
Olu ngwa: 5μL
Sistemụ ihe mgbaze na-emepe emepe: ngwakọta nke amonia na 2-propanol (3:7)
Mgbasa reagent: igbari 0.2 g nke ninhydrin na 100 ml nke ngwakọta nke butanol na 2 N acetic acid (95: 5).
Nyocha
Nlereanya: Ngwọta ọkọlọtọ, Ngwọta nlele, yana ngwọta dabara adaba sistemụ
Gaa n'ihu dịka akwadoro maka Chromatography <621>, Chromatography nke dị obere.Mgbe ịsachara efere ahụ ikuku, fesaa ya na reagent Spray, wee kpoo ọkụ n'etiti 100 ° na 105 ° maka 15 min.Nyochaa efere ahụ.Chromatogram sitere na ngwọta dabara adaba sistemụ na-egosipụta ntụpọ abụọ kewapụrụ nke ọma.
Usoro nnabata: Ebe ọ bụla nke abụọ sitere na ngwọta Sample adịghị ibu ma ọ bụ sie ike karịa ntụpọ isi nke ngwọta Standard.
Ihe adịghị ọcha n'otu n'otu: NMT 0.2%
Mkpokọta adịghị ọcha: NMT 2.0%
Nnwale akọwapụtara
Ọnwụ na-ehicha <731>: Kpochapụ ihe nlele na 105 ℃ maka awa 3: ọ na-efunahụ NMT 0.2% nke ịdị arọ ya.
NKWUO GBASARA YA
Nkwakọba na Nchekwa: Chekwaa n'ime akpa mechiri emechi nke ọma, ma chekwaa na ụlọ okpomọkụ a na-achịkwa.
Ụkpụrụ ntụaka USP <11>
USP Arginine Hydrochloride RS
USP Cystin RS
Kedu ka esi azụta?Biko kpọtụrụDr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
Ahụmịhe afọ 15?Anyị nwere ihe karịrị 15 afọ nke ahụmahụ na mmepụta na mbupụ nke a dịgasị iche iche nke elu mma pharmaceutical intermediates ma ọ bụ ezi kemịkal.
Isi ahịa?Na-ere ahịa ụlọ, North America, Europe, India, Korea, Japanese, Australia, wdg.
Uru?Ogo kachasị elu, ọnụ ahịa dị ọnụ ala, ọrụ ọkachamara na nkwado teknụzụ, nnyefe ngwa ngwa.
OgoNkwenye?Usoro njikwa mma siri ike.Ngwá ọrụ ọkachamara maka nyocha gụnyere NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, OR, KF, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, wdg.
Ihe atụ?Ọtụtụ ngwaahịa na-enye ihe nlele efu maka nyocha dị mma, ndị ahịa kwesịrị ịkwụ ụgwọ mbupu.
Nyocha ụlọ ọrụ?Nnabata nyocha ụlọ ọrụ.Biko mee oge oge tupu oge eruo.
MOQ?Enweghị MOQ.A na-anabata obere usoro.
Oge Mbuga ozi? Ọ bụrụ n'ime ngwaahịa, ekwenyere nnyefe ụbọchị atọ.
Ụgbọ njem?Site Express (FedEx, DHL), nke ikuku, site n'oké osimiri.
Akwụkwọ?Mgbe ọrụ ahịa gasịrị: COA, MOA, ROS, MSDS, wdg nwere ike ịnye.
Synthesis omenala?Nwere ike ịnye ọrụ nhazi ahaziri iche ka ọ dabara mkpa nyocha gị nke ọma.
Usoro ịkwụ ụgwọ?A ga-ebu ụzọ ziga akwụkwọ ọnụahịa Proforma mgbe nkwenye nke iwu, kpuchiri ozi ụlọ akụ anyị.Ịkwụ ụgwọ site na T/T (Telex Nyefee), PayPal, Western Union, wdg.
L-Cystine, (H-Cys-OH)2, (CAS: 56-89-3) bụ amino acid nwere sọlfọ nwere.1. L-Cysteine nwere ihe nkwụsị nke ọma.2. L-Cysteine nwere ike igbochi ma gwọọ mmerụ ahụ radieshon.3. LCysteine nwere ike wepu melanin akpụkpọ ahụ n'onwe ya, gbanwee ọdịdị nke akpụkpọ ahụ n'onwe ya, akpụkpọ ahụ na-aghọ ọcha eke.Ọ bụ ụdị ezigbo ihe ịchọ mma eke ọcha.4. L-Cysteine nwere ike melite mgbaàmà nke mbufụt na allergies akpụkpọ.5. L-Cysteine na ọrịa anụ ahụ nke anụ ọkụkọ bụkwa hypertrophy dị irè.6. L-Cysteine nwere ọrụ iji gbochie ịka nká.7. Cysteine bụ ụdị amino acid eke, nwere ọtụtụ ihe eji eme ihe na nhazi nri, a na-ejikarị ya eme ihe maka ime achịcha, dị ka ihe dị mkpa nke mgwakota agwa.8.Maka nyocha biochemical.Kwadebe usoro omenala ndu.A na-eji ya na biochemistry na nyocha ihe oriri.Na nkà mmụta ọgwụ, ọ nwere ike ịkwalite ọrụ oxidation na mbelata nke mkpụrụ ndụ ahụ, na-abawanye mkpụrụ ndụ ọbara ọcha ma gbochie mmepe nke nje bacteria.A na-ejikarị ya eme ihe maka alopecia dị iche iche.A na-ejikwa ya maka nnukwu ọrịa na-efe efe dị ka ọnyụnyụ ọbara, typhoid, influenza, asthma, neuralgia, eczema na ọrịa dị iche iche na-egbu egbu, ma na-ekere òkè n'ịkwado nhazi protein.A na-ejikwa ya dị ka ihe na-atọ ụtọ nri.9. Biochemical reagent, eji maka nkwadebe nke ndu omenala usoro.Ọ bụkwa akụkụ dị mkpa nke ntinye amino acid na nkwadebe amino acid.10. Dị ka nri oriri na-edozi ahụ enhancer, ọ na-eme ka ụmụ anụmanụ na-emepe emepe, dịkwuo arọ arọ, imeju na akụrụ ọrụ ma melite ajị anụ.11. Enwere ike iji ya dị ka ihe mgbakwunye ịchọ mma iji kwalite ọgwụgwọ ọnya, gbochie allergies anụ ahụ na ọgwụgwọ eczema.
-
N-Methyl-L-Alanine CAS 3913-67-5 CAS 3913-67-5 ...
-
Z-Lys(Z) -OH CAS 405-39-0 Nyocha> 98.0% (TLC)
-
Z-Glu(OtBu) -OH CAS 3886-08-6 ZL-Glutamic Acid ...
-
N-Acetyl-L-Glutamic Acid CAS 1188-37-0 (Ac-Glu-...
-
Ac-Arg-OH.2H2O CAS 155-84-0 N-α-Acetyl-L-Argini...
-
N-Benzoyl-L-Alanine CAS 2198-64-3 (Bz-Ala-OH) A...