Cystathionine-d4
(Synonyms: Allocystathionine-d4) 目录号 : GC49886An internal standard for the quantification of cystathionine
Sample solution is provided at 25 µL, 10mM.
Quality Control & SDS
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- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Cystathionine-d4 is intended for use as an internal standard for the quantification of cystathionine by GC- or LC-MS. Cystathionine is an intermediate in the biosynthesis of cysteine that is composed of homocysteine and serine.1,2 It has four potential isomers, L-cystathionine, D-cystathionine, L-allocystathionine, and D-allocystathionine.3 Dietary administration of L-allocystathionine (0.74%) or the naturally occurring L-cystathionine (0.74%) substitute for cystine and increase the body weight of growing rats.
1.Steegborn, C., Clausen, T., Sondermann, P., et al.Kinetics and inhibition of recombinant human cystathionine γ-lyase. Toward the rational control of transsulfurationJ. Biol. Chem.274(18)12675-12684(1999) 2.Finkelstein, J.D.The metabolism of homocysteine: Pathways and regulationEur. J. Pediatr.157(Suppl 2)S40-S44(1998) 3.Anslow, W.P., Jr., Simmonds, S., and Du Vigneaud, V.The synthesis of the isomers of cystathionine and a study of their availability in sulfur metabolismJ. Biol. Chem.166(1)35-45(1946)
Cas No. | SDF | Download SDF | |
别名 | Allocystathionine-d4 | ||
Canonical SMILES | OC(C(N)CSC([2H])([2H])C([2H])([2H])[C@H](N)C(O)=O)=O | ||
分子式 | C7H10D4N2O4S | 分子量 | 226.3 |
溶解度 | Water: slightly | 储存条件 | -20°C |
General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。 储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。 为了提高溶解度,请将管子加热至37℃,然后在超声波浴中震荡一段时间。 |
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Shipping Condition | 评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备RT,或根据请求配备蓝冰。 |
制备储备液 | |||
1 mg | 5 mg | 10 mg | |
1 mM | 4.4189 mL | 22.0946 mL | 44.1891 mL |
5 mM | 0.8838 mL | 4.4189 mL | 8.8378 mL |
10 mM | 0.4419 mL | 2.2095 mL | 4.4189 mL |
第一步:请输入基本实验信息(考虑到实验过程中的损耗,建议多配一只动物的药量) | ||||||||||
给药剂量 | mg/kg | 动物平均体重 | g | 每只动物给药体积 | ul | 动物数量 | 只 | |||
第二步:请输入动物体内配方组成(配方适用于不溶于水的药物;不同批次药物配方比例不同,请联系GLPBIO为您提供正确的澄清溶液配方) | ||||||||||
% DMSO % % Tween 80 % saline | ||||||||||
计算重置 |
计算结果:
工作液浓度: mg/ml;
DMSO母液配制方法: mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL,
体内配方配制方法:取 μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL saline,混匀澄清。
1. 首先保证母液是澄清的;
2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。