Diazo Serials

We are China ShengDa Pharmaceutical Company ,Lance755#hotmail.com
We produce the photosensitive

materials of electronic grade and printing grade such as Diazo-

2,1,4-chloride (CAS 36451-09-9), Diazo-2,1,5-chloride (CAS 3770-

97-6) and Diazo-2,1,5-sulfonic acid sodium salt (CAS 2657-00-3)

,Diphenylamine-4-diazonium salt (Diazo S),Methyl 1-Methylpyrrole-

2-acetate,Photosensitising dyes ,and we also have Specialty Resin

for PS Plate,such as:M-phenolic resin ,Blending phenolic resin

,Modified resin .feel free contact with us for more detail.

Diazo serials:

Chemical name:Diphenylamine-4-diazonium salt (Diazo S)
CAS No.: 4477-28-5
Trade name: DIAZO S
Molecular weight : 293
Molecular formula: C12H11N3O4S
Packing: 25Kg/drum.
Storage:
Not exposed in sunlight nor incandescent lamp.
Avoid high tempreture and moisture, far away from fire.
At tempreture 20°C or below, the storage time is 1 year since the

production date.


Chemical name: 2-diazo-1-naphthol-4-sulfonyl chloride
CAS No.: 36451-09-9
Molecular formula:C10H5ClN2O3S
Molecular weight:268.68
Structural formula:
Properties: yellow crystalline powder
Usage:PS plate photosensitizing glue, photoresist
Quality standard:
Appearance:yellow to orange crystal
Assay: ≥98.0%
Decomposed point: ≥140°C
Packing:5kg/bag or 25kg/drum.
Storage:
Not exposed in sunlight nor incandescent lamp.
Avoid high tempreture and moisture,far away from fire.
At tempreture 20°C or below, the storage time is 1 year since the

production date.


Chemical name:2-Diazo-1-Naphthol-5-Sulfonyl Chloride
CAS No.: 3770-97-6
Trade name: NAC-5
Molecular formula:C10H5ClN2O3S
Molecular weight:268.68
Quality standard:
Appearance:yellow to orange crystal
Assay: ≥98.0%
Decomposed point: ≥131°C
Packing: 5kg/bag, 25kg/drum.
Storage:
Not exposed in sunlight nor incandescent lamp.
Avoid high tempreture and moisture,far away from fire.
At tempreture 20°C or below, the storage time is 1 year since the

production date.


Chemical name:2-Diazo-1-Naphthol-5-Sulfonic Acid, Sodium Salt
CAS No.: 2657-00-3
Trade name: NAS-5
Molecular formula: C10H5N2O4SNa?2O
Molecular weight: 290.23
Quality standard:
Appearance:yellow to orange crystal
Assay: ≥95.0% or ≥99.0%(HPLC)
Moisture with hydrate: ≤7.5%
Packing: 25Kg/drum.
Not exposed in sunlight nor incandescent lamp.
Avoid high tempreture and moisture,far away from fire.
At tempreture 20°C or below, the storage time is 1 year since the

production date.


Methyl 1-Methylpyrrole-2-acetate:
Purity:>90.0%(GC)
M.F./M.W: C8H11NO2=153.18
CAS NO: 51856-79-2

Photosensitising dyes :
Name:Photosensitising dyes RST830
Properties:maximum absorption peak is 830nm. In infrared scanning,

Photosensitising dyes can adsorb the light energy and transfer

into heat energy.
Uses:used to produce temperature sensing glue in CTP temperature

sensing, dosage is 1～3%.
Specification:Assay≥98%;Melting point≥210°C;Appearance is

copper metallic glossiness
Packing:Inner bag is white PE bag , medium bag is black PE bag,

external bad is vacuum aluminum foil bag, 1kg/bag.


Specialty Resin for PS Plate
The series of products, manufactured are phenolic resins

and modified resins in the form of transparent lumps. The

softening points are in the range of 70-140°C, and viscosity in

5-13 mm2/s. They have excellent affinity, compatibility with

printing ink and fair resistance to alkali. They are grafted with

2-diazo-1-naphthol-5-sulfonyl chloride or used for the preparation

for the photosensitive film to give the product excellent

resistance to abrasion and printing life.