PHR1561
四氢呋喃
Pharmaceutical Secondary Standard; Certified Reference Material
别名:
四氢呋喃, 丁烯氧化物, 四亚甲基氧化物, 氧杂环戊烷
等级
certified reference material
pharmaceutical secondary standard
质量水平
Agency
traceable to USP 1601770
蒸汽密度
2.5 (vs air)
蒸汽压
114 mmHg ( 15 °C)
143 mmHg ( 20 °C)
CofA
current certificate can be downloaded
自燃温度
610 °F
expl. lim.
1.8-11.8 %
包装
ampule of 3x1.2 mL each
技术
HPLC: suitable
gas chromatography (GC): suitable
折射率
n20/D 1.407 (lit.)
沸点
65-67 °C (lit.)
mp
−108 °C (lit.)
密度
0.889 g/mL at 25 °C (lit.)
应用
pharmaceutical (small molecule)
包装形式
neat
储存温度
2-30°C
SMILES字符串
C1CCOC1
InChI
1S/C4H8O/c1-2-4-5-3-1/h1-4H2
InChI key
WYURNTSHIVDZCO-UHFFFAOYSA-N
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一般描述
Certified pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards. Tetrahydrofuran is a saturated cyclic ether with a potential use as a biofuel. It is used for the manufacture of polyurethanes.
应用
These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.
分析说明
These secondary standards offer multi-traceability to the USP and EP primary standards, where they are available.
其他说明
This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.
To see an example of a Certificate of Analysis for this material enter LRAC0275 in the slot below. This is an example certificate only and may not be the lot that you receive.
警示用语：
Danger
危险分类
Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
靶器官
Central nervous system, Respiratory system
补充剂危害
储存分类代码
3 - Flammable liquids
WGK
WGK 1
闪点(°F)
-6.2 °F - closed cup
闪点(°C)
-21.2 °C - closed cup
法规信息
危险化学品
此项目有
Szycher's Handbook of Polyurethanes (1999)
Fabrice Giusti et al.
The Journal of membrane biology, 247(9-10), 909-924 (2014-03-22)
Amphipols are short amphipathic polymers that can substitute for detergents at the hydrophobic surface of membrane proteins (MPs), keeping them soluble in the absence of detergents while stabilizing them. The most widely used amphipol, known as A8-35, is comprised of
Gyan P Mishra et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 88(2), 397-405 (2014-06-17)
Biodegradable poly(ethyleneglycol)-poly(valerolactone)-poly(ethyleneglycol) [PEG-PVL-PEG] copolymers were synthesized through ring opening polymerization of δ-valerolactone (VL) followed by the coupling of monomethoxy poly(ethyleneglycol-poly(valerolactone) (mPEG-PVL) with hexamethylene diisocyanate (HDI). The copolymers were characterized by (1)H NMR, FT-IR, and GPC. Block copolymers of PEG and
Konstantinos E Farsalinos et al.
Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco, 17(2), 168-174 (2014-09-03)
The purpose of this study was to evaluate sweet-flavored electronic cigarette (EC) liquids for the presence of diacetyl (DA) and acetyl propionyl (AP), which are chemicals approved for food use but are associated with respiratory disease when inhaled. In total
Veli C Ozalp et al.
Analytica chimica acta, 853, 533-540 (2014-12-04)
A quartz crystal microbalance sensor (QCM) was developed for sensitive and specific detection of Salmonella enterica serovar typhimurium cells in food samples by integrating a magnetic bead purification system. Although many sensor formats based on bioaffinity agents have been developed
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