Shanghai Chunyuan Phytochemistry Co., Ltd – Product Catalog : Chemicals, Pharmaceutical, pharmaceutical

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Shanghai Chunyuan Phytochemistry Co., Ltd

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1. 2,3,4-trihydroxy benzaldehyde

Molecular formula: C7H6O4
Molecular weight: 154.12
Registry number: 2144-08-3

Main specification:
Appearance: Yellowish crystalline power
Assay(HPLC): 99.5%Min
Melting point: 159162℃
Moisture: 0.5%Max
Sulphated ash: 0.1%Max
Clarity ...

2. 2,3,4-Trimethoxybenzaldehyde

Molecular Formula: C10H12O4
Formula Weight: 196.20
Registry number: 2103-57-3

Main specifications:
Item：First-grade product
Appearance：Light yellow flakes or crystalline powder
Loss of drying, %：1
Content，%：99

Application: ...

3. tannic acid

Molecular formula and weight: C76H52O46=1701.18
Registry number: 1401-55-4

We have the tannic acid products of four specifications as following:
(1)Tannic acid for medicine: Conforming USA Pharmacopoeia of 1990 edition.

Property: Light ...

4. Pyrogallol acid

Synonym: pyrogallic acid
Chemical name: 1,2,3-trihydroxybenzene
Molecular formula and weight: C6H6O3=126.11
Description: White lustrous crystalline powder, soluble in 2 parts of water, 1 part of ethanol and 2 parts of ethyl ether.
Specification: ...

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