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Beta-30
The Beta molecular sieve has a unique structure of three dimensional twelve ring cross pore. It is composed of a mixture of two closely related polycrystalline bodies, which are composed of tetrahedral units arranged in layers symmetrical to the same center. Both structures are composed of tertiary units (TBU) paired by the same center, which are arranged in layers and then connected in the form of left and right hands. This connection causes the channel to twist along the C direction.
Beta molecular sieves show excellent catalytic performance in catalytic cracking, hydrocracking, hydroisomerization, hydrodewaxing, aromatic alkylation, olefin hydration, olefin etherification and other petroleum refining and petrochemical processes. -
Beta-25
The Beta molecular sieve has a unique structure of three dimensional twelve ring cross pore. It is composed of a mixture of two closely related polycrystalline bodies, which are composed of tetrahedral units arranged in layers symmetrical to the same center. Both structures are composed of tertiary units (TBU) paired by the same center, which are arranged in layers and then connected in the form of left and right hands. This connection causes the channel to twist along the C direction.
Beta molecular sieves show excellent catalytic performance in catalytic cracking, hydrocracking, hydroisomerization, hydrodewaxing, aromatic alkylation, olefin hydration, olefin etherification and other petroleum refining and petrochemical processes. -
Beta-50
The Beta molecular sieve has a unique structure of three dimensional twelve ring cross pore. It is composed of a mixture of two closely related polycrystalline bodies, which are composed of tetrahedral units arranged in layers symmetrical to the same center. Both structures are composed of tertiary units (TBU) paired by the same center, which are arranged in layers and then connected in the form of left and right hands. This connection causes the channel to twist along the C direction.
Beta molecular sieves show excellent catalytic performance in catalytic cracking, hydrocracking, hydroisomerization, hydrodewaxing, aromatic alkylation, olefin hydration, olefin etherification and other petroleum refining and petrochemical processes. -
Beta-B
The Beta molecular sieve has a unique structure of three dimensional twelve ring cross pore. It is composed of a mixture of two closely related polycrystalline bodies, which are composed of tetrahedral units arranged in layers symmetrical to the same center. Both structures are composed of tertiary units (TBU) paired by the same center, which are arranged in layers and then connected in the form of left and right hands. This connection causes the channel to twist along the C direction.
Beta molecular sieves show excellent catalytic performance in catalytic cracking, hydrocracking, hydroisomerization, hydrodewaxing, aromatic alkylation, olefin hydration, olefin etherification and other petroleum refining and petrochemical processes. -
INTERMEDIATE
Product name CAS:N0 Molecular formula Molecular weight Structural formula Appearance / content 4-bromomethylbenzaldehyde 51359-78-5 C8H7BrO 199.04 White-like solid powder 98% 3-(Bromomethyl)benzaldehyde 82072-23-9 C8H7BrO 199.04 White-like solid powder 97% (2-(Bromomethyl)phenyl)methanol 74785-02-7 C8H9BrO 201.06 White-like solid powder 97% ethyl 5-(benzyloxy)-1H-indole-2- carboxylate 37033-95-7 C18H17NO3... -
TDS YIHOO AMP
QINGDAO YIHOO POLYMER TECHNOLOGY CO. LTD.
TECHNICAL DATA SHEET
YIHOO AMP
Chemical name 2-Amino-2-methyl-1-propanol CAS Number 124-68-5 Molecular structure 
Product form Colorless transparent liquid or white crystal Specifications TEST SPECIFICATION Purity(%) 93.00-97.00 Moisture(%) 4.80-5.80 Chemical property Melting Point °c 30-31℃
Boiling Point 165℃：67.4（0.133kPa）
Relative Density 0.934（20/20℃）
Refractive index 1.449（20℃）
Miscible with water and soluble in alcoholApplication ①In the field of metal processing, it is mainly used as a biostable and pH stabilizer. This product is widely used in concentrate and post-treatment of
metalworking fluids in Europe and the United States, and is the main raw
material for the development of biostable formulations. It is used in on-site dosing to increase and stabilize pH value, saving and extending the life of metalworking fluids. The product also has the advantages of anti-cobalt precipitation and low foaming.
②For the synthesis of surfactants; vulcanization accelerators; Acid gas absorber.
③Derivatives are formed with carboxylic acids for gas chromatography analysis.
④Additives for paints and latex paints, pigment dispersion, pH adjustment and rust prevention.Pakcage 25kg drum/200kg drum -
Intermediate
YIHOO POLYMER
Product name
CAS:N0
Molecular formula
Molecular weight
Structural formula
Appearance / content
4-bromomethylbenzaldehyde
51359-78-5
C8H7BrO
199.04
White-like solid powder
98%
3-(Bromomethyl)benzaldehyde
82072-23-9
C8H7BrO
199.04
White-like solid powder
97%
(2-(Bromomethyl)phenyl)methanol
74785-02-7
C8H9BrO
201.06
White-like solid powder
97%
ethyl 5-(benzyloxy)-1H-indole-2-
carboxylate
37033-95-7
C18H17NO3
295.33
White-like solid powder
98%
2,6-Bis(chloromethyl)pyridine
3099-28-3
C7H7Cl2N
176.04
White powder
98%
2,6-Bis(bromomethyl)pyridine
7703-74-4
C7H7Br2N
264.95
White powder
98%
2,6-Pyridinedimethanol
1195-59-1
C7H9NO2
139.15
White powder
99%
N-Tosylaziridine
3634-89-7
C9H11NO2S
197.25
White powder
98%
Ethyl 4,6-dichloronicotinate
40296-46-6
C8H7Cl2NO2
220.05
White-like solid powder
98%
4-(chloromethyl)benzaldehyde
73291-09-5
C8H7ClO
154.59
White-like solid powder
97%
1-Cyclopentene-1-carbaldehyde
6140-65-4
C6H8O
96.13
Colorless transparent liquid
97%
8-Phenyl-1-octanol
10472-97-6
C14H22O
206.32
Colorless transparent liquid
98%
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YIHOO DICUMENE
QINGDAO YIHOO POLYMER TECHNOLOGY CO. LTD.
TECHNICAL DATA SHEET
YIHOO DICUMENE
Chemical name 2,3-dimethyl-2,3-diphenylbutane CAS number 1889-67-4 Molecular structure 
Product form white to yellow powder Specifications TEST SPECIFICATION Melting Point 100~115 ℃ (dec) Purity 96% (min) (HPLC) Initiation temperature 230℃ Half time 0.1hr 284℃ 1hr 259℃ 10 hr 237℃ Application ①Dicumene is a highly effective, environmentally friendly flame retardant synergist recommended for extruded polystyrene insulation panels (XPS).
②This product can replace the traditional heavy metal synergist and significantly reduce the amount of heavy metal synergist (such as antimony trioxide Sb2O3).
③It can be used in flame retardant masterbatches of polypropylene and polyethylene.
④It can be used in flame retardant masterbatches of polypropylene and polyethylene.Pakcage 25kg carton -
FR BDDP
QINGDAO YIHOO POLYMER TECHNOLOGY CO. LTD.
PRODUCT DATA SHEET
FR BDDP
CHEMICAL NAME Tetrabromobisphenol A bis(dibromopropyl ether) CAS NUMBER 21850-44-2 STRUCTURE 
PRODUCT FORM WHITE POWDER OR GRANULAR SPECIFICATIONS ITEMS STANDARD Assay (%) 96.00 min White degree 92.00 min Bromine content (%) 67.00 min Melting point (℃) 100.00 min Volatiles (%) 0.20 max APPLICATION YIHOO FR BDDP is a good flame retardant for olefin resin, mainly used in various grades of polypropylene, polypropylene fiber, styrene butadiene rubber, butadiene rubber, etc., with remarkable flame retardant effect. PACKAGE 1000KG BAG -
YIHOO FR CU
QINGDAO YIHOO POLYMER TECHNOLOGY CO. LTD.
TECHNICAL DATA SHEET
YIHOO FR CU
Chemical name Cyclic Phosphonate CAS number 170836-68-7 Molecular structure 
Product form CLEAR HIGHLY VISCOUS LIQUID Specifications TEST SPECIFICATION PHOSPHORUS 20.5% MIN ACID VALUE 20(mg KOH/g) MAX VISCOSITY （25℃） 150000 MPA·S MAX DMMP 0.5% MAX
COLOR: 100 (PT-COCOLOR 100 (PT-CO) MAX Application FR-CU is an kind of efficient cyclic phosphonate flame retardant. It contains high phosphorus
with an excellent water solubility. It could be applied in the fabric for inner vestee used in building,
curtaining and cars and special workwear. It is particularly suitable for the treatment of polyester
fabrics , T/C blends and PU coating to impart the fabric to have the flame-stop effect. The effect of the fabric after treatment will be long-lasting and durable to wash with wide-range application!Pakcage 250kg drug -
YIHOO FR PHT-4 DIOL
QINGDAO YIHOO POLYMER TECHNOLOGY CO. LTD.
TECHNICAL DATA SHEET
YIHOO FR PHT-4 DIOL
Chemical name 1,2-Benzenedicarboxylic acid, 3,4,5,6-tetrabromo-, mixed esters with diethylene glycol and propylene glycol CAS number 77098-07-8 Molecular structure 
Product form Light brown viscous liquid Specifications TEST SPECIFICATION Bromine content % 44-48 Acid number mgKOH/g 0.15 max Hydroxide mgKOH/g 130-235 Viscosity CP/25℃ 19000-22000 Moisture % 0.1 max Application Flame retardant for PU building facades Pakcage 25kg drug -
YIHOO FR130
QINGDAO YIHOO POLYMER TECHNOLOGY CO. LTD.
TECHNICAL DATA SHEET
YIHOO FR130
Chemical name Reaction mass of 1,1′-(isopropylidene)bis[3,5-dibromo-4-(2,3-dibromo-2- methylpropoxy)benzene] and 1,3-dibromo-2-(2,3-dibromo-2-methylpropoxy)-5-{2-[3,5-dibromo-4-(2,3,3-
tribromo-2-methylpropoxy)phenyl]propan-2-yl}benzeneCAS number 97416-84-7 Molecular structure 
Product form White powder Specifications TEST SPECIFICATION 1,1′-(isopropylidene)bis[3,5-dibromo-4-(2,3- dibromo-2-methylpropoxy)benzene]- methylpropoxy)benzene](%) 87.00-91.00 1,3-dibromo-2-(2,3-dibromo-2-methylpropoxy) -5- {2-[3,5-dibromo-4-(2,3,3-tribromo-2- methylpropoxy) phenyl]propan-2-yl}benzene 7.00-11.00% bromine 65.00% min Melting point(℃) 108.00 min Whiteness(%) 90.00 min Gardner color(Pt-Co) 20.00 max Application replacement of DBDPE on XPS and EPS. Pakcage 25kg bag or 1mt bag