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烟酸(维生素 B3) Nicotinic acid(Vitamin B3)

所属分类:维生素
商品编号:
商品规格:25g
计量单位:
库存现状:50
参考价:¥100
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详细说明

烟酸(维生素 B3) Nicotinic acid(Vitamin B3)

产品详细说明:

图片地址1

Synonym 3-Picolinic acid

Niacin

Pellagra preventive factor

Pyridine-3-carboxylic acid

Vitamin B3

Molecular Formula C 6 H 5 NO 2

Molecular Weight: 123.11

CAS Number: 59-67-6

Descriptions:

Biochem/physiol Actions: Decreases hepatic production of very-low density lipoproteins and

apolipoprotein B.

Properties:

Assay…………………………………………………………… ≥ 98%

mp ………………………………………………………………236-239 °C(lit.)

Risk Statements: 36/37/38

Safety Statements: 26-36

TEST

SPECIFICATION

APPEARANCE

WHITE TO OFF-WHITE POWDER

SOLUBILITY

CLEAR COLORLESS TO VERY FAINT YELLOW SOLUTION AT 200MG PLUS 4ML OF 1M SODIUM HYDROXIDE

IR SPECTRUM

CONSISTENT WITH STRUCTURE

PURITY BY SODIUM HYDROXIDE TITRATION

NLT 98%

PURITY BY THIN LAYER CHROMATOGRAPHY

NLT 98%

RECOMMENDED RETEST

3 YEARS

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