(S)-(-)-α-甲基缬氨酸 | 53940-83-3

• 物质功能分类: 生物化工 - 氨基酸及其衍生物 - 缬氨酸类衍生物
• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 中文名称: (S)-(-)-α-甲基缬氨酸
• 中文别名: L-ALPHA-甲基缬氨酸；(S)-2-氨基-2,3-二甲基丁酸；(S)-(-)-a-甲基缬氨酸；L-α-甲基缬氨酸；α-甲基-L-缬氨酸
• 英文名称: (S)-α-Methylvaline
• 英文别名: H-L-(αMe)Val-OH；(S)-2-methylvaline；(2S)-2-amino-2,3-dimethylbutanoic acid
• CAS: 53940-83-3
• 化学式: C₆H₁₃NO₂
• 分子量: 131.175
• InChiKey: GPYTYOMSQHBYTK-LURJTMIESA-N

物化性质

• 熔点：
  >225oC (dec.)
• 沸点：
  217.7±23.0 °C(Predicted)
• 密度：
  1.038±0.06 g/cm3(Predicted)
• 溶解度：
  可微溶于水

计算性质

• 辛醇/水分配系数(LogP)：
  -1.2
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  67.8
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• WGK Germany：
  3
• 海关编码：
  2922499990
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335

SDS

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Section 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE
Product identifiers
: (S)-(−)-α-Methylvaline
Product name
CAS-No. : 53940-83-3
Relevant identified uses of the substance or mixture and uses advised against
Identified uses : Laboratory chemicals, Manufacture of substances

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Section 2. HAZARDS IDENTIFICATION
Classification of the substance or mixture
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Label elements
Caution - substance not yet tested completely.
Other hazards - none

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Section 3. COMPOSITION/INFORMATION ON INGREDIENTS
Substances
: α-Methyl-L-valine
Synonyms
α-Me-Val-OH
Formula : C6H13NO2
Molecular Weight : 131,17 g/mol

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Section 4. FIRST AID MEASURES
Description of first aid measures
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration.
In case of skin contact
Wash off with soap and plenty of water.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water.
Most important symptoms and effects, both acute and delayed
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Indication of any immediate medical attention and special treatment needed
no data available

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Section 5. FIREFIGHTING MEASURES
Extinguishing media
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, nitrogen oxides (NOx)
Advice for firefighters
Wear self contained breathing apparatus for fire fighting if necessary.
Further information
no data available

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Section 6. ACCIDENTAL RELEASE MEASURES
Personal precautions, protective equipment and emergency procedures
Avoid dust formation. Avoid breathing vapors, mist or gas.
Environmental precautions
Do not let product enter drains.
Methods and materials for containment and cleaning up
Sweep up and shovel. Keep in suitable, closed containers for disposal.
Reference to other sections
For disposal see section 13.

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Section 7. HANDLING AND STORAGE
Precautions for safe handling
Provide appropriate exhaust ventilation at places where dust is formed.Normal measures for preventive fire
protection.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
hygroscopic Store under inert gas.
Specific end uses
no data available

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Section 8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Control parameters
Components with workplace control parameters
Exposure controls
Appropriate engineering controls
General industrial hygiene practice.
Personal protective equipment
Eye/face protection
Use equipment for eye protection tested and approved under appropriate government standards
such as NIOSH (US) or EN 166(EU).
Skin protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique
(without touching glove's outer surface) to avoid skin contact with this product. Dispose of
contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and
the standard EN 374 derived from it.
Body Protection
Choose body protection in relation to its type, to the concentration and amount of dangerous
substances, and to the specific work-place., The type of protective equipment must be selected
according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection
Respiratory protection is not required. Where protection from nuisance levels of dusts are desired,
use type N95 (US) or type P1 (EN 143) dust masks. Use respirators and components tested and
approved under appropriate government standards such as NIOSH (US) or CEN (EU).

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Section 9. PHYSICAL AND CHEMICAL PROPERTIES
Information on basic physical and chemical properties
a) Appearance Form: powder
Colour: white
b) Odour no data available
c) Odour Threshold no data available
d) pH no data available
e) Melting point/freezing no data available
point
f) Initial boiling point and no data available
boiling range
g) Flash point no data available
h) Evaporation rate no data available
i) Flammability (solid, gas) no data available
j) Upper/lower no data available
flammability or
explosive limits
k) Vapour pressure no data available
l) Vapour density no data available
m) Relative density no data available
n) Water solubility no data available
o) Partition coefficient: n- log Pow: -1,63
octanol/water
p) Autoignition no data available
temperature
q) Decomposition no data available
temperature
r) Viscosity no data available
s) Explosive properties no data available
t) Oxidizing properties no data available
Other safety information
no data available

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Section 10. STABILITY AND REACTIVITY
Reactivity
no data available
Chemical stability
no data available
Possibility of hazardous reactions
no data available
Conditions to avoid
no data available
Incompatible materials
Strong oxidizing agents
Hazardous decomposition products
Other decomposition products - no data available

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Section 11. TOXICOLOGICAL INFORMATION
Information on toxicological effects
Acute toxicity
no data available
Skin corrosion/irritation
no data available
Serious eye damage/eye irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
IARC: No component of this product present at levels greater than or equal to 0.1% is identified as
probable, possible or confirmed human carcinogen by IARC.
Reproductive toxicity
no data available
Specific target organ toxicity - single exposure
no data available
Specific target organ toxicity - repeated exposure
no data available
Aspiration hazard
no data available
Potential health effects
Inhalation May be harmful if inhaled. May cause respiratory tract irritation.
Ingestion May be harmful if swallowed.
Skin May be harmful if absorbed through skin. May cause skin irritation.
Eyes May cause eye irritation.
Signs and Symptoms of Exposure
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.
Additional Information
RTECS: Not available

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Section 12. ECOLOGICAL INFORMATION
Toxicity
no data available
Persistence and degradability
no data available
Bioaccumulative potential
no data available
Mobility in soil
no data available
Results of PBT and vPvB assessment
no data available
Other adverse effects
no data available

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Section 13. DISPOSAL CONSIDERATIONS
Waste treatment methods
Product
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contaminated packaging
Dispose of as unused product.

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Section 14. TRANSPORT INFORMATION
UN number
ADR/RID: - IMDG: - IATA: -
UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
Transport hazard class(es)
ADR/RID: - IMDG: - IATA: -
Packaging group
ADR/RID: - IMDG: - IATA: -
Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
Special precautions for user
no data available

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SECTION 15 - REGULATORY INFORMATION
N/A

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  (S)-(-)-α-甲基缬氨酸 在 氢溴酸 、 potassium bromide 、 sodium nitrite 作用下， 以 水 、 乙酸乙酯 为溶剂， 生成 2,3-二甲基丁-2-烯酸
  参考文献：
  名称：

  Pyrrolidine modulators of chemokine receptor activity

  摘要：

  本发明涉及式I的吡咯烷化合物： （其中R1，R2，R3，R4，R5，R6，R14和n的定义如本文中）这些化合物可用作调节化学趋化因子受体活性的调节剂。特别是，这些化合物可用作调节CCR-5和/或CCR-3的化学趋化因子受体的调节剂。

  公开号：

  US06248755B1
• 作为产物：
  描述：

  2-氨基-2,3-二甲基丁酰胺 生成 (S)-(-)-α-甲基缬氨酸
  参考文献：
  名称：

  Enzymatic resolution of α,α-disubstituted α-amino acid esters and amides

  摘要：

  The scope and limitations of the enzymatic resolution of alpha,alpha-disubstituted alpha-amino acid amides by an amino acid amidase from Mycobacterium neoaurum and of the corresponding ethyl esters with Pig liver esterase (PLE) have been studied. Moderate enantiomeric excesses were obtained with PLE, with only a narrow substrate specificity. Mycobacterium neoaurum on the contrary yields a broad range of S-alpha,alpha-disubstituted alpha-amino acids 1 and the corresponding R-amides 2.

  DOI：

  10.1016/s0957-4166(00)80217-7
• 作为试剂：
  描述：

  sodium phenylphyruvate 在 (S)-(-)-α-甲基缬氨酸 、 copper(II) sulfate 作用下， 反应 1.0h， 生成 L-苯丙氨酸 、 D-苯丙氨酸
  参考文献：
  名称：

  Enantioselective Synthesis and Enantiomeric Amplification of Amino Acids under Prebiotic Conditions

  摘要：

  A plausible origin of biomolecular homochirality is advanced, where alpha-methyl amino acids found on meteorites transfer their chirality in the synthesis of normal amino acids. This asymmetry can be amplified to nearly homochiral levels, thus providing the necessary prerequisite for life to start on this planet and elsewhere in the universe.

  DOI：

  10.1021/ol8007099

文献信息

• [EN] METABOLICALLY ROBUST ANALOGS OF CYP-EICOSANOIDS FOR THE TREATMENT OF CARDIAC DISEASE<br/>[FR] ANALOGUES ROBUSTES SUR LE PLAN MÉTABOLIQUE DES CYP-EICOSANOÏDES POUR LE TRAITEMENT DES MALADIES CARDIAQUES
  申请人：OMEICOS THERAPEUTICS GMBH

  公开号：WO2017013265A1

  公开（公告）日：2017-01-26

  The present invention relates to compounds according to general formula (I) which are metabolically robust analogues of bioactive lipid mediators derived from omega-3 polyunsaturated fatty acids (n-3 PUFAs).The present invention further relates to compositions containing one or more of these compounds and to the use of these compounds or compositions for the treatment or prevention of cardiovascular diseases.

  本发明涉及符合一般式（I）的化合物，这些化合物是从ω-3多不饱和脂肪酸（n-3 PUFAs）衍生的生物活性脂质介质的代谢稳健类似物。本发明还涉及含有这些化合物中的一个或多个的组合物，以及利用这些化合物或组合物治疗或预防心血管疾病。
• [EN] COMPOSITIONS AND METHODS FOR THE TREATMENT OF BACTERIAL INFECTIONS<br/>[FR] COMPOSÉS ET MÉTHODES POUR LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
  申请人：CIDARA THERAPEUTICS INC

  公开号：WO2018006063A1

  公开（公告）日：2018-01-04

  Compositions and methods for the treatment of bacterial infections include compounds containing dimers of cyclic heptapeptides conjugated to one or more monosaccharide or oligosaccharide moieties. In particular, compounds can be used in the treatment of bacterial infections caused by Gram-negative bacteria.

  用于治疗细菌感染的组合物和方法包括含有环七肽二聚体与一个或多个单糖或寡糖基团结合的化合物。特别是，这些化合物可用于治疗由革兰氏阴性细菌引起的细菌感染。
• New Chiral Derivatizing Agents: Convenient Determination of Absolute Configurations of Free Amino Acids by ¹H NMR
  作者：Michio Kurosu、Kai Li

  DOI：10.1021/ol8028719

  日期：2009.2.19

  The chiral carbonate reagents 5 allow for the direct and unambiguous determination of the absolute configurations of a wide range of free amino acids using 1H NMR. By using a ∼3:1 mixture of (S)-5 and (R)-5, absolute configurations of the corresponding carbamates are determined by only analyzing the nitrogen protons.

  手性碳酸酯试剂5允许使用1 H NMR直接和明确地确定各种游离氨基酸的绝对构型。通过使用〜（S）-5和（R）-5的〜3：1混合物，仅通过分析氮质子即可确定相应氨基甲酸酯的绝对构型。
• [EN] PEPTIDE-BASED MULTIPLE-DRUG DELIVERY VEHICLE<br/>[FR] VÉHICULE D'ADMINISTRATION DE MÉDICAMENTS MULTIPLES À BASE DE PEPTIDES
  申请人：ARIEL-UNIVERSITY RES AND DEV COMPANY LTD

  公开号：WO2017068577A1

  公开（公告）日：2017-04-27

  A molecular structure comprising a targeting moiety, a multi-functional peptide platform and a plurality of controllably released bioactive agents attached thereto is provided herein.

  本文提供了一种包括靶向基团、多功能肽平台和附着在其上的多种可控释放的生物活性剂的分子结构。
• Novel eicosanoid derivatives
  申请人：Max-Delbrück-Centrum für Molekulare Medizin (MDC)

  公开号：EP2208720A1

  公开（公告）日：2010-07-21

  The present invention provides compounds (n-3 PUFA derivatives) of formula (I): that modulate conditions associated with cardiac damage, especially cardiac arrhythmias.

  本发明提供了式(I)的化合物（n-3 PUFA衍生物）： 这些化合物调节与心脏损伤相关的病症，特别是心律失常。