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Merck

47608

Sigma-Aldrich

甲醛 溶液

for molecular biology, BioReagent, ≥36.0% in H2O (T)

别名:

Formol, 甲醛, 福尔马林

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About This Item

线性分子式:
HCHO
CAS号:
分子量:
30.03
Beilstein:
1209228
MDL號碼:
分類程式碼代碼:
12352114
PubChem物質ID:
NACRES:
NA.52

等級

for molecular biology

品質等級

蒸汽密度

1.03 (vs air)

蒸汽壓力

52 mmHg ( 37 °C)

產品線

BioReagent

形狀

liquid

自燃溫度

572 °F

包含

~10% methanol as stabilizer

濃度

≥36.0% in H2O (T)
36.0-38.0% (aldehyde method)

技術

electrophoresis: suitable

雜質

≤0.03% free acid (as HCOOH)

燃燒殘留物

≤0.05% (as SO4)

pH值

2.8-4.0

密度

1.09 g/mL at 20 °C
1.09 g/mL at 25 °C (lit.)

負離子痕跡

chloride (Cl-): ≤10 mg/kg
sulfate (SO42-): ≤20 mg/kg

正離子痕跡

Ca: ≤5 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Na: ≤100 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Zn: ≤1 mg/mL

&lambda ;

2 M in H2O

紫外吸收

λ: 260 nm Amax: 0.01
λ: 280 nm Amax: 0.01

適合性

in accordance for electrophoresis of RNA in agarose gels

儲存溫度

room temp

SMILES 字串

[H]C([H])=O

InChI

1S/CH2O/c1-2/h1H2

InChI 密鑰

WSFSSNUMVMOOMR-UHFFFAOYSA-N

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一般說明

甲醛是一种分子生物学试剂,当掺入琼脂糖凝胶时,在电泳过程中使RNA变性。
它是一种脂肪族醛,在工业上广泛用于合成几种化学品,如三聚氰胺甲醛、脲醛、酚甲醛和工业树脂、多聚甲醛、多元醇、螯合剂、缓释肥料、1,4-丁二醇和六亚甲基四胺。

應用

甲醛溶液适用于:
  • RNA分子的变性和分离
  • 抗菌治疗
  • 细胞固定
甲醛溶液已被用于:
  • 人精原干细胞移植(SSCT)的固定。
  • 在染色质免疫沉淀过程中交联T细胞急性淋巴细胞白血病蛋白/DNA复合体。
  • 斑马鱼幼体中性粒细胞染色固定。

注意

可能含有沉淀(多聚甲醛)

原則

甲醛能够破坏RNA的二级结构,并帮助实现基于电荷迁移的RNA种类分离和鉴定。

訊號詞

Danger

危險分類

Acute Tox. 2 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Carc. 1B - Eye Dam. 1 - Flam. Liq. 3 - Muta. 2 - Skin Corr. 1B - Skin Sens. 1 - STOT SE 1 - STOT SE 3

標靶器官

Eyes,Central nervous system, Respiratory system

儲存類別代碼

3 - Flammable liquids

水污染物質分類(WGK)

WGK 3

閃點(°F)

133.0 °F - closed cup

閃點(°C)

56.11 °C - closed cup

個人防護裝備

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter


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