L-组氨酰-L-丝氨酸 | 21438-60-8

• 物质功能分类: 生物化工 - 生化试剂 - 氨基酸
• 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: L-组氨酰-L-丝氨酸
• 中文别名: (S)-2-((S)-2-氨基-3-(1H-咪唑-4-基)丙酰胺基)-3羟基丙酸
• 英文名称: L-histidyl-L-serine
• 英文别名: histidine-serine；histidylserine；his-Ser；HisSer；HS；N-histidyl-serine；(2S)-2-[[(2S)-2-amino-3-(1H-imidazol-5-yl)propanoyl]amino]-3-hydroxypropanoic acid
• CAS: 21438-60-8；69613-33-8；69613-36-1；90694-70-5
• 化学式: C₉H₁₄N₄O₄
• 分子量: 242.235
• InChiKey: KRBMQYPTDYSENE-BQBZGAKWSA-N

物化性质

• 熔点：
  138-141℃
• 沸点：
  737.6±60.0 °C(Predicted)
• 密度：
  1.492±0.06 g/cm3(Predicted)
• 物理描述：
  Solid

计算性质

• 辛醇/水分配系数(LogP)：
  -3.9
• 重原子数：
  17
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  146
• 氢给体数：
  4
• 氢受体数：
  5

安全信息

• WGK Germany：
  3
• 海关编码：
  2933290090
• 危险性防范说明：
  P261,P280,P301+P312,P302+P352,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335

SDS

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SECTION 1: Identification of the substance/mixture and of the company/undertaking
Product identifiers
Product name : His-Ser
REACH No. : A registration number is not available for this substance as the substance
or its uses are exempted from registration, the annual tonnage does not
require a registration or the registration is envisaged for a later
registration deadline.
CAS-No. : 21438-60-8
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
The product does not need to be labelled in accordance with EC directives or respective national laws.
Other hazards - none

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SECTION 3: Composition/information on ingredients
Substances
Formula : C9H14N4O4
Molecular Weight : 242,23 g/mol
CAS-No. : 21438-60-8
No components need to be disclosed according to the applicable regulations.

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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
The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in
section 11
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.
For personal protection see section 8.
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.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Store in cool place. Keep container tightly closed in a dry and well-ventilated place.
Recommended storage temperature: -20 °C
Hygroscopic. Store under inert gas.
Specific end use(s)
A part from the uses mentioned in section 1.2 no other specific uses are stipulated

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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).
Control of environmental exposure
Do not let product enter drains.

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SECTION 9: Physical and chemical properties
Information on basic physical and chemical properties
a) Appearance Form: powder
Colour: light yellow
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- no data available
octanol/water
p) Auto-ignition 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
Stable under recommended storage conditions.
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
In the event of fire: see section 5

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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
Additional Information
RTECS: Not available
To the best of our knowledge, the chemical, physical, and toxicological properties have not been
thoroughly investigated.

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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
PBT/vPvB assessment not available as chemical safety assessment not required/not conducted
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
This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006.
Safety, health and environmental regulations/legislation specific for the substance or mixture
no data available
Chemical Safety Assessment
For this product a chemical safety assessment was not carried out

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SECTION 16: Other information
Further information
Copyright 2013 Co. LLC. License granted to make unlimited paper copies for internal use
only.
The above information is believed to be correct but does not purport to be all inclusive and shall be
used only as a guide. The information in this document is based on the present state of our knowledge
and is applicable to the product with regard to appropriate safety precautions. It does not represent any
guarantee of the properties of the product. Corporation and its Affiliates shall not be held
liable for any damage resulting from handling or from contact with the above product. See
and/or the reverse side of invoice or packing slip for additional terms and conditions of sale.

反应信息

• 作为反应物：
  描述：

  L-组氨酰-L-丝氨酸 在 sodium molybdate dihydrate 、 水 作用下， 以 water-d2 为溶剂， 生成 L-丝氨酸 、 L-组氨酸
  参考文献：
  名称：

  [MoO 4 ] 2-氧杂氰酸促进的中性pH下含丝氨酸肽的水解

  摘要：

  通过1 H，13 C和95 Mo NMR光谱法检查了在含氧钼酸盐溶液中二肽的甘氨酰丝氨酸（GlySer），亮氨酰丝氨酸（LeuSer），组氨酸丝氨酸（HisSer），甘氨酰丙氨酸（GlyAla）和丝氨酰甘氨酸（SerGly）的水解情况。在含氧钼酸盐的混合物存在下，GlySer中肽键的水解在中性pD条件（pD = 7.0，60°C）下以k obs = 5.9×10 –6 s –1的速率常数进行。NMR光谱没有显示出顺磁性物质形成的证据，排除了Mo（VI）还原为Mo（V）的可能性，这表明肽键的裂解是纯水解的。k的pD依赖性obs呈钟形，在pD 7.0观察到最快的卵裂。速率分布图与含氧钼酸盐物种的浓度分布图的比较涉及单钼酸盐MoO 4 2–作为动力学活性复合物。使用固定量的GlySer和不断增加的MoO 4 2–在pD 7.0下进行的动力学实验可以计算催化速率常数（k 2 = 9.25×10 –6

  DOI：

  10.1021/ic2015034

文献信息

• Chemical isotope labeling-assisted liquid chromatography-mass spectrometry enables sensitive and accurate determination of dipeptides and tripeptides in complex biological samples
  作者：Feng-Qing Huang、Yu Wang、Ji-Wen Wang、Dai Yang、Shi-Lei Wang、Yuan-Ming Fan、Raphael N. Alolga、Lian-Wen Qi

  DOI：10.1016/j.cclet.2024.109670

  日期：2024.11

  their unique features and diverse biological functions. Achieving rapid separation and accurate quantification, however, remains a challenge because of their low abundance and the co-existence of numerous structural isomers. In this study, we developed a novel approach using isotope chemical labeling for ultrasensitive determination of di/tripeptides in biological samples. We successfully synthesized a

  小肽因其独特的特性和多样化的生物学功能而受到越来越多的关注。然而，由于其丰度低且存在多种结构异构体，实现快速分离和准确定量仍然是一个挑战。在这项研究中，我们开发了一种使用同位素化学标记超灵敏测定生物样品中二肽/三肽的新方法。我们成功合成了一种新型衍生化试剂4-(2-(乙氧基亚甲基)-3-氧代丁酰胺基)-三甲基苯胺碘化物(EOTMBA)及其氘标记同位素试剂(-EOTMBA)。总共97个小肽，包括89个二肽和8个三肽，在60℃下1.5小时内可以在​​甲醇中完全衍生化。 EOTMBA 标记后，通过 LC-MS/MS 分析在 22 分钟内完成对这些二肽/三肽的分析。该方法的准确度为 86.3%–113%，定量限范围为 0.25 fmol/L 至 5 nmol/L。利用该方法，我们对取自健康个体和胆道疾病患者的 147 份血浆、49 份尿液和 46 份胆汁样本中的二肽/三肽进行了超灵敏和准确的定量。
• Hydrolytic Activity of Vanadate toward Serine-Containing Peptides Studied by Kinetic Experiments and DFT Theory
  作者：Phuong Hien Ho、Tzvetan Mihaylov、Kristine Pierloot、Tatjana N. Parac-Vogt

  DOI：10.1021/ic300761g

  日期：2012.8.20

  Hydrolysis of dipeptides glycylserine (Gly-Ser), leucylserine (Leu-Ser), histidylserine (His-Ser), glycylalanine (Gly-Ala), and serylglycine (Ser-Gly) was examined in vanadate solutions by means of H-1, C-13, and V-51 NMR spectroscopy. In the presence of a mixture of oxovanadates, the hydrolysis of the peptide bond in Gly-Ser proceeds under the physiological pH and temperature (37 degrees C, pD 7.4) with a rate constant of 8.9 x 10(-8) s(-1). NMR and EPR spectra did not show evidence for the formation of paramagnetic species, excluding the possibility of V(V) reduction to V(IV) and indicating that the cleavage of the peptide bond is purely hydrolytic. The pD dependence of k(obs) exhibits a bell-shaped profile, with the fastest hydrolysis observed at pD 7.4. Combined H-1, C-13, and V-51 NMR experiments revealed formation of three complexes between Gly-Ser and vanadate, of which only one complex, designated Complex 2, formed via coordination of amide oxygen and amino nitrogen to vanadate, is proposed to be hydrolytically active. Kinetic experiments at pD 7.4 performed by using a fixed amount of Gly-Ser and increasing amounts of Na3VO4 allowed calculation of the formation constant for the Gly-Ser/VO43- complex (K-f = 16.1 M-1). The structure of the hydrolytically active Complex 2 is suggested also on the basis of DFT calculations. The energy difference between Complex 2 and the major complex detected in the reaction mixture, Complex 1, is calculated to be 7.1 kcal/mol in favor of the latter. The analysis of the molecular properties of Gly-Ser and their change upon different modes of coordination to the vanadate pointed out that only in Complex 2 the amide carbon is suitable for attack by the hydroxyl group in the Ser side chain, which acts as an effective nucleophile. The origin of the hydrolytic activity of vanadate is most likely a combination of the polarization of amide oxygen in Gly-Ser due to the binding to vanadate, followed by the intramolecular attack of the Ser hydroxyl group.

表征谱图