arabinose | 20235-19-2

• 物质功能分类: 生物化工 - 糖类化合物
• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: arabinose
• 英文别名: (2S,3R)-2,3,4,5-tetrahydroxypentanal
• CAS: 20235-19-2
• 化学式: C₅H₁₀O₅
• 分子量: 150.131
• InChiKey: PYMYPHUHKUWMLA-DEOSMSJNSA-N

物化性质

• 熔点：
  158-160 °C
• 沸点：
  191.65°C (rough estimate)
• 密度：
  1.1897 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  -2.3
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  98
• 氢给体数：
  4
• 氢受体数：
  5

安全信息

• 海关编码：
  2912491000

SDS

Name:	D l-Arabinose 98% Material Safety Data Sheet
Synonym:	Non
CAS:	20235-19-2

Section 1 - Chemical Product MSDS Name:D l-Arabinose 98% Material Safety Data Sheet
Synonym:Non

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
20235-19-2	D,L-Arabinose, 98%		243-619-3

Hazard Symbols: None Listed.
Risk Phrases: None Listed.

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Not available.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract.
Inhalation:
May cause respiratory tract irritation.
Chronic:
No information found.

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Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:

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Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

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Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.

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Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage:
Store in a cool, dry place. Keep container closed when not in use.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 20235-19-2: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Solid
Color: white
Odor: odorless
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 158.00 - 160.00 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: soluble
Specific Gravity/Density:
Molecular Formula: C5H10O5
Molecular Weight: 150.13

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Not available.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide.
Hazardous Polymerization: Will not occur.

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 20235-19-2 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
D,L-Arabinose, 98% - Not listed by ACGIH, IARC, or NTP.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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Section 14 - TRANSPORT INFORMATION

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 20235-19-2: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 20235-19-2 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 20235-19-2 is not listed on the TSCA inventory.
It is for research and development use only.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为产物：
  描述：

  聚合甲醛 在 3-苄基羟乙基甲基噻唑氯化锂 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 1,3-dihydroxyacetone dimer 、 arabinose 、 galactose 、 glucose
  参考文献：
  名称：

  福尔摩反应

  摘要：

  摘要详细研究了甲醛化反应，即噻唑鎓离子的共轭碱在非质子传递溶剂中甲醛的自缩合反应。葡萄糖，半乳糖，二羟基丙酮二聚体，木糖和阿拉伯糖已被鉴定为产品。记录了催化剂，温度，碱度和反应时间的影响。N，N-二甲基甲酰胺是比醚，苯或二甘醇二甲醚更方便的溶剂。乙二异丙基胺提供的碳水化合物原料比三乙胺更好。在≤60°时，醛醇缩合降至最低。反应1-2小时后（取决于条件），产量开始下降并在约24小时后变为零。

  DOI：

  10.1016/0008-6215(83)88109-9

文献信息

• The formoin reaction
  作者：Josep Castells、Francisco López-Calahorra、Fernando Geijo

  DOI：10.1016/0008-6215(83)88109-9

  日期：1983.6

  Abstract The formoin reaction, i.e. , the autocondensation of formaldehyde in an aprotic solvent catalysed by the conjugate base of a thiazolium ion, has been studied in detail. Glucose, galactose, dihydroxyacetone dimer, xylose, and arabinose have been identified as products. The influence of catalysts, temperature, basicity, and reaction time is documented. N , N -Dimethylformamide is a more convenient

  摘要详细研究了甲醛化反应，即噻唑鎓离子的共轭碱在非质子传递溶剂中甲醛的自缩合反应。葡萄糖，半乳糖，二羟基丙酮二聚体，木糖和阿拉伯糖已被鉴定为产品。记录了催化剂，温度，碱度和反应时间的影响。N，N-二甲基甲酰胺是比醚，苯或二甘醇二甲醚更方便的溶剂。乙二异丙基胺提供的碳水化合物原料比三乙胺更好。在≤60°时，醛醇缩合降至最低。反应1-2小时后（取决于条件），产量开始下降并在约24小时后变为零。