Short description:
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E-mail: Beata@xmwonderfulbio.com
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We can provide our customers with high quality products and first-class services. Now, we can provide G-KG service for our customers. More advantages are as follows. 1. We can provide samples for testing 2. We have established long-term and stable cooperation with UPS, TNT, EMS, Fedex! If the package is lost, we will reship it for free 3. Payment methods: UPS,TNT,EMS,Fedex,etc. 4. If you need new products, we can synthesize and secret for you. 5. Higher purity, lower price, first-class service 6. Manufacturer: Total production exceeds 10% of the country, market share exceeds 15% 7. High quality: World top production equipment, manufacturing process High precision 8 . Low price: the most advanced production equipment and the cheapest raw materials 9. safe transportation channels: we have a professional transportation team to ensure that the goods arrive safely and on time to your hands. 10. quality assurance: ten years of gold medal quality assurance, perfect after-sales service, first-class technical team, so you can buy with confidence. Perfect after-sales service and first-class technical team make your shopping easy and ensure the goods reach you safely and on time. Our products can easily pass any customs If you need any medicine or want to know any medicine, please send us an email Looking forward to a long-term cooperation with you.
| common name | Diphenhydramine | English name | diphenhydramine |
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| CAS number | 58-73-1 | molecular weight | 255.355 |
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| density | 1.0±0.1g/cm3 | boiling point | 343.7±27.0 °C at 760 mmHg |
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| molecular formula | C 17 H 21 NO | melting point | 167-172°C |
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| MSDS | N/A | Flash point | 101.5±26.0°C |
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| density | 1.0±0.1g/cm3 |
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| boiling point | 343.7±27.0 °C at 760 mmHg |
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| melting point | 167-172°C |
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| molecular formula | C 17 H 21 NO |
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| molecular weight | 255.355 |
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| Flash point | 101.5±26.0°C |
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| accurate mass | 255.162308 |
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| PSA | 12.47000 |
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| LogP | 3.66 |
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| Appearance traits | transparent light yellow liquid |
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| vapor pressure | 0.0±0.8 mmHg at 25°C |
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| Refractive index | 1.551 |
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| Storage conditions | Ventilated, low-temperature and dry, and stored separately from food raw materials in the warehouse |
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| Molecular Structure | 1. Molar refractive index: 79.56 2. Molar volume (cm 3 /mol) : 249.2 3. Isotonic specific volume (90.2K): 621.4 4. Surface tension (dyne/cm): 38.6 5. Polarizability (10-24cm3): 31.54 |
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| computational chemistry | 1. Hydrophobic parameter calculation reference value (XlogP): None 2. Number of hydrogen bond donors: 0 3. Number of hydrogen bond acceptors: 2 4. Number of rotatable chemical bonds: 6 5. Number of tautomers: None 6. Topological molecular polar surface area 12.5 7. Number of heavy atoms: 19 8. Surface charge: 0 9. Complexity: 211 10. Number of isotope atoms: 0 11. Determine the number of stereocenters: 0 12. Uncertain number of atomic stereocenters: 0 13. Determine the number of stereocenters of chemical bonds: 0 14. Uncertain number of chemical bond stereocenters: 0 15. Number of covalent bond units: 1 |
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| More | 1. Properties: oily liquid. 2. Boiling point (°C): 163-167 (0.40kPa), 150-165°C (0.267kPa). |
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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 , and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly. for payment can also be by western union ,money gram ,bitcoin ,that is very easy
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.
Q:what is the shipping way ?
A: for small order ,we ship by air express ,like Fedex, TNT,DHL,EMS .
China
