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甲醛溶液 [福尔马林],Formaldehyde solution;ACS reagent, 37 wt. % in H2O, contains 10-15% Methanol as stabilizer (to prevent polymerization)

甲醛水溶液; Formalin;CAS号 50-00-0 线性分子式 HCHO 分子量 30.03 Beilstein/REAXYS Number 1209228 MDL number MFCD00003274 PubChem Substance ID 24855218 NACRES NA.21
货号(SKU): 252549
CAS号: 50-00-0
MDL号: MFCD00003274
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HK$452.63

产品描述

General description

甲醇(福尔马林)是通过对甲醇的氧化而生成的。它由37%的甲醛以及如甲醇、少量甲酸、醛和酮等杂质组成。它可用作RNA的甲醛-琼脂糖凝胶电泳中的变性剂。[1][2]

Application

甲醛溶液已用于ChIP(染色体免疫沉淀)检测中的细胞交联/固定。[5][3]它已用于成像用的细胞固定。[6][4]

甲醛溶液已被用作固定剂以在免疫荧光成像中固定细胞和在染色质免疫沉淀(ChIP)检测中交联细胞。[7]

包装

1, 4 L in glass bottle

25, 100, 4×100, 500, 6×500 mL in glass bottle

Physical form

该产品是甲醛气体按37%的重量溶于中的溶液。

Other Notes

The article number 252549-4X2.5L will be discontinued. Please order the single bottle 252549-2.5L which is physically identical with the same exact specifications.
The article number 252549-6X1L will be discontinued. Please order the single bottle 252549-1L which is physically identical with the same exact specifications.

性质

Quality Level200
gradeACS reagent
vapor density1.03 (vs air)
vapor pressure52 mmHg ( 37 °C)
52 mmHg ( 37 °C)
assay36.5-38.0%
autoignition temp.572 °F
contains10-15% Methanol as stabilizer (to prevent polymerization)
concentration37 wt. % in H2O
impurities≤0.006 meq/g Titr. acid
ign. residue≤0.005%
colorAPHA: ≤10
refractive indexn20/D 1.3765
density1.09 g/mL at 25 °C (lit.)
anion traceschloride (Cl-): ≤5 ppm
sulfate (SO42-): ≤0.002%
cation tracesFe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)
suitabilitysuitable for manufacturing use (Laboratory chemicals)
SMILES string[H]C([H])=O
InChI1S/CH2O/c1-2/h1H2
InChI keyWSFSSNUMVMOOMR-UHFFFAOYSA-N


安全信息

信号词 Danger
靶器官 Eyes, Respiratory system
危害码 (欧洲) T
风险声明 (欧洲) 45-23/24/25-34-39/23/24/25-43-68
安全声明 (欧洲) 53-26-36/37/39-45
RIDADR UN 2209 8 / PGIII
WGK德国 WGK 3
闪点(华氏) 133.0 °F - closed cup - Not applicable
闪点(摄氏) 56.11 °C - closed cup - Not applicable
商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 155 | 欧洲Eur. ≥ 66 | 東京Tokyo ≥ 78 | 香港与北京 ≥ 32
商品标签