structure of 7789-20-0

Deuterium Oxide(CAS 7789-20-0)

CAS No.: 7789-20-0 Brand: MolBest
M. Ft.: D2O Cat. No: G1103294
M. Wt.: 20.03 MDL: MFCD00044636
Storage: Store in a cool,dry area. Use: For laboratory research use only
Purity Grade Package Stock Price Quantity
(D,99.8%)
Documents:COANMRHPLCSDS
RG 25G In Stock 34 USD
(D,99.8%)
Documents:COANMRHPLCSDS
RG 100G In Stock 135 USD
(D,99.8%)
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RG 500G In Stock 671 USD
(D,99.9%)
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RG 5G In Stock 8 USD
(D,99.9%)
Documents:COANMRHPLCSDS
RG 25G In Stock 36 USD
(D,99.9%)
Documents:COANMRHPLCSDS
RG 100G In Stock 140 USD
(D,99.9%)
Documents:COANMRHPLCSDS
RG 500G In Stock 697 USD
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Physical and chemical properties of 7789-20-0

Acidity coefficient

pK (25°) 14.955 (molarity scale); 16.653 (mole fraction scale): A. K. Covington et al., J. Phys. Chem. 70, 3820 (1966)

Boiling Point

101.42 °C

Density

1.1044 at 25 °C. Temp of max density 11.23 °C; 1.1059 at 11.23 °C

Exact Mass

20.023117

Flash Point

101.4°C

Index of Refraction

Index of refraction: 1.3283 at 20 °C/D

LogP

-1.38

Melting Point

3.81 °C; triple point 3.82 °C

Merck

14,2940

Molecular Formula

D2O

Molecular Weight

20.028

Odor

Odorless

pH

7 (H2O, 20℃)

PSA

9.23000

Sensitivity

Moisture Sensitive

Stability

Stable. Hygroscopic.

Storage condition

Store below +30°C.

Vapour Pressure

20.6 mm Hg at 25 °C

Water Solubility

Miscible with water.

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Spectrums of 7789-20-0

Attention:
1.The NMR spectrum displayed on the page is a pre-sale reference spectrum and may differ from that of the actual received batch.
2.The accompanying documentation will include the NMR spectrum and purity analysis data for the shipped batch.
Physical sample testing spectrum (NMR) of 7789-20-0

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Pictograms

Signal Word

Warning

Hazard Statements

H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation

Safety Data Sheet

Q&A for CAS 7789-20-0

1. How can I verify product quality?
Every batch is tested in accordance with ISO 9001 requirements. We provide a Certificate of Analysis (COA), NMR spectrum, purity report, and test methods with each shipment. Third-party retesting is supported, and we offer a full refund if our data is incorrect.

2. What is the delivery time?
Orders are shipped on the second business day via FedEx, DHL, or UPS. International deliveries typically arrive within 7 business days (subject to customs clearance).

3. What if the received product doesn’t meet quality standards?
If the product does not match the COA or has a quality issue, we will issue a full refund or replacement upon verification.

4. Are hazardous labels included? How is safe shipping ensured?
Hazardous products are labeled and packaged in compliance with international regulations and shipped with an up-to-date Safety Data Sheet (SDS) to ensure safe and compliant transport.

5. Do you offer technical support?
Yes. Our technical team is available to assist with questions about product use, storage, purity requirements, applications, and more.

6. Are volume discounts available?
Yes. We offer competitive pricing for bulk orders. Please submit a quotation request, and we’ll provide a customized offer.

7. Do you provide samples?
Yes, samples are available for select products for testing and validation. Please submit a sample request or contact our sales team to confirm availability and specifications.

8. Do you have products in stock?
Items marked “In Stock” on our website are ready for immediate shipment, usually within 1–2 business days. Large packs or custom specifications require lead time confirmation.

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Yes. We support customization of purity, packaging size, and special testing requirements. Please share your detailed needs, and we’ll provide a solution.

10. Is the COA consistent with the shipped batch?
Yes. The COA provided with your shipment matches the actual batch and includes the batch number. COAs shown online are for reference or from previous batches.

11. Do you support long-term supply agreements?
Yes. We offer stable batch consistency, pricing agreements, and safety stock options for long-term customers to ensure uninterrupted supply.

12. What payment methods do you accept?
We accept bank transfer (T/T), PayPal, and other methods. Credit terms may be available for qualified long-term partners.

Applications of 7789-20-0

Deuterium oxide has diverse applications across various fields:

  • Nuclear Reactors: Used as a neutron moderator due to its ability to slow down neutrons effectively.
  • Nuclear Magnetic Resonance Spectroscopy: Acts as a solvent that provides clearer results by minimizing interference from protons.
  • Biochemical Research: Serves as an isotopic tracer in studies of metabolic rates and chemical mechanisms.
  • Pharmaceutical Development: Helps in studying drug interactions and metabolic pathways due to its unique properties .

Retrosynthesis analysis of 7789-20-0

  • Route#1

    Cas:7789-20-0
  • Route#2

    Cas:1333-74-0
    Cas:13587-54-7
    Cas:7789-20-0
  • Route#3

    Cas:15917-77-8
    Cas:16873-17-9
    Cas:7789-20-0

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