China (Mainland)
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PN Sodium formaldehyde bisulfite CAS 870-72-4 CAS NO.870-72-4
- Min.Order: 10 Kilogram
- Payment Terms: L/C,D/P,Western Union,MoneyGram
- Product Details
Keywords
- Hydroxypropyl acrylate
- Hydroxypropyl acrylate supplier
- 870-72-4
Quick Details
- ProName: PN Sodium formaldehyde bisulfite CAS 8...
- CasNo: 870-72-4
- Molecular Formula: C8H17N2NaO4S
- Appearance: White to pale yellow crystalline powde...
- Application: PN Sodium formaldehyde bisulfite CAS 8...
- DeliveryTime: within 10days afer get your payment
- PackAge: Aluminum Foil Bag or as your requirem...
- Port: Tianjin,qingdao or as your requiremen...
- ProductionCapacity: 500 Metric Ton/Day
- Purity: 99%
- Storage: keep in dry place
- Transportation: as your requirement
- LimitNum: 10 Kilogram
- Grade: Industrial Grade
Superiority
We do following terms :
1) Best quality
2) Many years experience in this field
3) Loyal customers in countries
4) Professional big supplier
5) Safe shipping
6) Various payment terms
| cas | 870-72-4 |
| Name | PN Sodium formaldehyde bisulfite |
| Appearance | white powder |
| Application | organic intermediate |
Specification:
|
Item |
Specifications |
Results |
|
Appearance |
White to white crystalline powder |
White crystalline powder |
|
Assay |
≥94.0% |
95.78% |
|
PH value |
5.5~10.5 |
6.66 |
|
Water solubility |
Clear transparent liquid , solid particles are less than or equal to 4 Particles |
Clear and transparent liquid with 2 black spots and a little fiber |
|
Turbidity |
≤0.5# |
<0.5# |
|
Conclusion |
The results conforms with enterprise standards |
|
| cas | 870-72-4 |
| Name | PN Sodium formaldehyde bisulfite |
| Appearance | white powder |
| Application | organic intermediate |
Specification:
|
Item |
Specifications |
Results |
|
Appearance |
White to white crystalline powder |
White crystalline powder |
|
Assay |
≥94.0% |
95.78% |
|
PH value |
5.5~10.5 |
6.66 |
|
Water solubility |
Clear transparent liquid , solid particles are less than or equal to 4 Particles |
Clear and transparent liquid with 2 black spots and a little fiber |
|
Turbidity |
≤0.5# |
<0.5# |
|
Conclusion |
The results conforms with enterprise standards |
|
Details
| cas | 870-72-4 |
| Name | PN Sodium formaldehyde bisulfite |
| Appearance | white powder |
| Application | organic intermediate |
Specification:
|
Item |
Specifications |
Results |
|
Appearance |
White to white crystalline powder |
White crystalline powder |
|
Assay |
≥94.0% |
95.78% |
|
PH value |
5.5~10.5 |
6.66 |
|
Water solubility |
Clear transparent liquid , solid particles are less than or equal to 4 Particles |
Clear and transparent liquid with 2 black spots and a little fiber |
|
Turbidity |
≤0.5# |
<0.5# |
|
Conclusion |
The results conforms with enterprise standards |
|
Delivery Detail: within 3 days when get the payment.
Shipping :
We have Professional shipping agent, based on customers ' demand for transport
By express :FEDEX,DHL,EMS ,UPS,TNT ect.
By SEA and By AIR
Thanks for your considering of Hebei Guanlang Biotechnology Co., Ltd.(Crovell). Crovell is a fast growing intermediates company,Which located in Shijiazhuang,Hebei Province.
Crovell is specialized in pharmaceutical intermediates, veterinary drug intermediates and dyes intermediates,such as phenylacetamide, dimethylamine hcl, benzyl chloride etc., Crovell also supply various industrial chemicals for customers, such as citric acid,potassium chloride etc.
After ten years development,Crovell has become a Diversified development company,not only involves in chemicals, but also real estate ,clothes ,agricultural products and so on.
So far, Crovell has business in more than 35 countries,most big customers come from europe and America, because among the suppliers in china,Crovell can always make the product quality best, some of the products from Crovell can reach the purity of 99.9+, such as 2-phenylacetamide. This is the important reason for customers who choosing Crovell.
In future, Crovell must become to a more important trade bridge for china and foreign countries especially in pharmaceutical industries.
Q: How to start orders or make payments
A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.
Q: How to confirm the Product Quality before placing orders
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
Q: What's your MOQ
A:For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts from 100g and 1kg.
Q: Is there a discount
A: Yes, for larger quantity, we always support with better price.
Q:How do you treat quality complaint
First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
Q:How to contact us
You can choose your interested products and send inquiry to us.You can dial our telephone directly, you will get our reply.
Send Email to us.
|
Item |
Specification |
Result |
|
Apearance |
White Crysstalline Powder |
Complies |
|
Purity |
≥98% |
99.21% |
|
Frangrance |
Faint, chamomile or tobacco aroma |
Complies |
|
Melting point |
≥40.0℃ |
43.0℃ |
|
PH(KOH) |
≤2.0mg/g |
0.6mg/g |
|
Rotation of a20 / |
≤-78(Ethanol) |
Complies |
|
Product Name |
Monobenzone |
|
Appearance |
Off-white crystalline powder |
|
Assay |
99% |
|
CAS No. |
103-16-2 |
|
Molecular Formula |
C20H20O3 |
|
Molecular Weight |
308.371 |
|
Melting point |
117-122°C |
|
Water solubility |
Slightly soluble |
|
Grade |
Food & Cosmetic & Medicine Grade |
|
Test Method |
HPLC |
|
Storage |
Store in cool and dry places, keep away from strong light. |
|
Shelf life |
2 years when properly stored. |
Monobenzone is an organic chemical in the phenol family with chemical formula C6H5CH2OC6H4OH. It is used as a topical drug for medical depigmentation. It is a colourless solid that is classified as the monobenzyl ether of hydroquinone.
Monobenzone is soluble in alcohol, benzene, and diethyl ether, and slightly insoluble in water.
Name: 3-Indolepropionic acid
Synonyms: Indole-3-propionic acid; 3-(1H-Indol-3-yl)propanoic acid
Identification:
Molecular Formula: C11H11NO2
Molecular Weight: 189.21
CAS Number: 830-96-6
EINECS: 212-600-1
Properties
Melting point: 130-136 ºC
Water solubility: slightly soluble
Specification:
assay: 98.0%min
| Product Name | Konjac Gum | Active Ingredient | Konjac Glucomannan |
| Appearance | White Powder | Test Method | HPLC |
| Specification | Glucomannan 60%-99% | CAS No. | 37220-17-0 |
| Total Plate Count | <1000cfu/g | EINECS No. | 253-404-6 |
Konjac Gum is a plant that is found in China, Japan and Indonesia. The plant is part of the genus Amorphophallus. Typically, it thrives in the warmer regions of Asia. Konjac Extract Glucomannan
| Imidacloprid is a systemic insecticide which acts as an insect neurotoxin and belongs to a class of chemicals called the neonicotinoids which act on the central nervous system of insects, with much lower toxicity to mammals. The chemical works by interfering with the transmission of stimuli in the insect nervous system. Specifically, it causes a blockage of the nicotinergic neuronal pathway. By blocking nicotinic acetylcholine receptors, imidacloprid prevents acetylcholine from transmitting impulses between nerves, resulting in the insect's paralysis and eventual death. It is effective on contact and via stomach action. Because imidacloprid binds much more strongly to insect neuron receptors than to mammal neuron receptors, this insecticide is more toxic to insects than to mammals. |
|
Items |
Specifications |
Results |
|
|
Appearance |
White to yellowish crystalline powder |
Qualified |
|
|
Identification |
Infrared Absorption |
Qualified |
|
|
The retention times of the Component B1a peak and the Component B1b peak in the chromatogram of the Assay preparation correspond to those in the chromatogram of the standard preparation |
Qualified |
||
|
Specific rotation |
+132 °~ +140 ° |
+137 ° |
|
|
Water |
≤2.0% |
0.3% |
|
|
Residue on ignition |
≤0.1% |
0.1% |
|
|
Heavy metals |
≤10ppm |
10ppm |
|
|
Residual solvents |
Acetonitrile ≤0.005% |
0.003% |
|
|
Sum of all solvent ≤0.5% |
0.2% |
||
|
8a-oxo-B1a |
≤0.5% |
0.1% |
|
|
Related compounds |
Related compounds with relative retentions of 0.23,0.93, and 1.16 correspond to B1a peak≤ 1.0% |
0.5% |
|
|
Related compounds |
Impurity A ≤1.0% |
0.2% |
|
|
Impurity E ≤ 1.0% |
0.1% |
||
|
All other known impurities ≤0.5% |
0.2% |
||
|
Total unknown impurities≤ 1.0% |
0.3% |
||
|
Total impurities ≤5.0% |
1.3% |
||
|
Assay |
Component B1a ≥90.0% |
93.1% |
|
|
Component B1a and Component B1b≥ 95.0% |
98.7% |
||
|
Conclusion |
The results conform with USP35 |
||
| cas |
100-53-8 |
| Name |
2-Chloropropionic acid |
| Appearance |
Clear colorless |
| Application |
Used in flavor manufacture. |
Specification:
|
Items |
Result |
|
Appearance |
Liquid |
|
Content |
99.0%min |
|
Name |
2-Chloropropionic acid |
|
Brand |
zhishang |
|
CAS |
100-53-8 |
Name: 2,3,5,6-Tetrafluorophenol
CAS: 769-39-1
Appearance: white solid
Application: Organic synthesis
Specification:
|
Test |
Specification |
Result |
|
Appearance |
White solid |
Confirm |
|
Purity (HPLC area%) |
≥98% |
99.7 |
|
Purity (GC area%) |
≥98% |
99.6 |
|
Water,KF(% w/w) |
≤0.5
|
0.1 |
|
Conclusion |
The standard confirm the enterprise standard |
|
| cas | 49851-31-2 |
| Name | 2-BROMO-1-PHENYL-PENTAN-1-ONE |
| Appearance | Pale yellow liquid |
| Application | organic intermediate |
| cas | 126-07-8 |
| Name | Griseofulvin |
| Appearance | Off-white powder |
| Application | PHARMACEUTICAL |
Chemical Name: Griseofulvin
CAS No.: 126-07-8
Molecular Fomula: C17H17ClO6
Appearance: White to off-white powder
Assay:99% min
| cas | 75-12-7 |
| Name | Formamide |
| Appearance | colorless liquid |
| Application | organic intermediate |
Specification:
|
Product Name: |
Formamide |
|
Synonyms: |
Formamide; Formamide Methanamide; |
|
Formula: |
CH3NO |
|
CAS Registry Number: |
75-12-7 |
|
EINECS |
200-842-0 |
|
Product description: |
Colorless Transparent Liquid |
|
used as intermediates and solvents |
| cas | 111-20-6 |
| Name | Sebacic acid |
| Appearance | white powder |
| Application | organic intermediate |
Specification:
Usage: Mainly used as sebacic acid ester plasticizer and nylon moulding resin raw materials, but also used as high temperature resistant lubricating oil raw materials. Its main ester products are methyl ester, isopropyl ester, butyl ester, octyl ester, nonyl ester and benzyl ester, commonly used esters are dibutyl sebacate and dioctyl sebacate. Sebacic acid plasticizer can be widely used in PVC, alkyd resin, polyester resin and polyamide molding resin, because of its low toxicity and high temperature resistance, it is often used in some special purpose resin. The nylon moulding resin produced with sebacic acid has higher toughness and lower hygroscopicity, and can also be processed into many special purpose products. Or rubber softeners, surfactants, coatings and spices.
| cas | 103-84-4 |
| Name | Acetanilide |
| Appearance | white powder |
| Application | organic intermediate |
Specification:
|
Inspect Item |
Specification |
Results |
|
Appearance |
White crystal powder |
Conform |
|
Melting Point Limits |
113~115°C |
113.5°C |
|
Aniline Assay |
≤0.15% |
0.076% |
|
Water Content |
≤1.0% |
0.5% |
|
Ash Content |
≤0.1% |
0.085% |
|
Free acid |
≤ 0.5% |
0.10% |
| cas | 32149-57-8 |
| Name | Magnesium tert-butoxide |
| Appearance | white crystalline |
| Application | organic intermediate |
Specification:
| Product Name: | Magnesium tert-butoxide |
| Synonyms: | MagnesiuM tert-butoxide, 90+%;Magnesium Tertiary Butoxide;Magnesium tert-butoxide, technical, 90%;MTB;MAGNESIUM TERT-BUTOXIDE;MAGNESIUM DI-TERT-BUTOXIDE;magnesium 2-methylpropan-2-olate;Magnesiumtert-butoxide,94% |
| CAS: | 32149-57-8 |
| MF: | C8H18MgO2 |
| MW: | 170.53 |
| EINECS: | 250-931-3 |
| Product Categories: | Materials Science;Metal and Ceramic Science;Organic Bases;Salts;Synthetic Reagents;Chemical Synthesis;Magnesium Salts |
| Mol File: | 32149-57-8.mol |
| cas | 25584-83-2 |
| Name | Hydroxypropyl acrylate |
| Appearance | colorless liquid |
| Application | organic intermediate |
Specification:
| Product Name: | Hydroxypropyl acrylate |
| Synonyms: | 1,2(or3)-propanediol,1-acrylate;2-Propenoic acid, monoester with 1,2-propanediol;2-Propenoicacid,monoesterwith1,2-propanediol;acrylicacid,2-hydroxypropylester;acrylicacid,monoesterwith1,2-propanediol;hydroxypropylacrylate,mixtureofisomers;propyleneglycolacrylate;HYDROXYPROPYL ACRYLATE 95% MIXTURE OF& |
| CAS: | 25584-83-2 |
| MF: | C6H10O3 |
| MW: | 130.14 |
| EINECS: | 247-118-0 |
| Product Categories: | AcrylateCarbonyl Compounds;Acrylic Monomers;C6 to C7;Esters;Monomers |
| Mol File: | 25584-83-2.mol |
| cas | 870-72-4 |
| Name | PN Sodium formaldehyde bisulfite |
| Appearance | white powder |
| Application | organic intermediate |
Specification:
|
Item |
Specifications |
Results |
|
Appearance |
White to white crystalline powder |
White crystalline powder |
|
Assay |
≥94.0% |
95.78% |
|
PH value |
5.5~10.5 |
6.66 |
|
Water solubility |
Clear transparent liquid , solid particles are less than or equal to 4 Particles |
Clear and transparent liquid with 2 black spots and a little fiber |
|
Turbidity |
≤0.5# |
<0.5# |
|
Conclusion |
The results conforms with enterprise standards |
|