Dangerous Goods
structure of 121-45-9

Trimethyl Phosphite(CAS 121-45-9)

CAS No.: 121-45-9 Brand: MolBest
M. Ft.: C3H9O3P Cat. No: G2442968
M. Wt.: 124.08 MDL: MFCD00008350
Storage: Store in a cool,dry area. Use: For laboratory research use only
UN No.: UN 2329 3 /PG III
Purity Grade Package Stock Price Quantity
98%
Documents:COANMRGCSDS
RG 100ML In Stock 4 USD
98%
Documents:COANMRGCSDS
RG 2.5L In Stock 60 USD
98%
Documents:COANMRGCSDS
RG 25L In Stock 434 USD
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Physical and chemical properties of 121-45-9

Boiling Point

232 °F

BRN

956570

Decomposition

... When heated to decomposition can emit highly toxic fumes of /phosphorus oxides/.

Density

1.05

Exact Mass

124.028931

explosive limit

5.2-61.2%(V)

Exposure Limits

TLV-TWA 10 mg/m3 (2 ppm) (ACGIH).

Flash Point

82 °F

Index of Refraction

Index of refraction: 1.4095 at 20 °C/D

LogP

-0.93

Melting Point

-108 °F

Molecular Formula

C3H9O3P

Molecular Weight

124.076

Odor

Powerful, sickly odor

PSA

41.28000

Sensitivity

Air & Moisture Sensitive

Stability

Stable under recommended storage conditions.

Storage condition

2-8°C

Vapour density

Relative vapor density (air = 1): 4.3

Vapour Pressure

(77 °F): 24 mmHg

Water Solubility

Hydrolyzes with water.

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Pre-sale COA

Spectrums of 121-45-9

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 121-45-9

Download SDS of 121-45-9

Pictograms

Signal Word

Danger

Hazard Statements

H226 Flammable liquid and vapor
H302 Harmful if swallowed
H312 Harmful in contact with skin
H315 Causes skin irritation
H318 Causes serious eye damage
H319 Causes serious eye irritation
H332 Harmful if inhaled
H335 May cause respiratory irritation
H361 Suspected of damaging fertility or the unborn child

Safety Data Sheet

Q&A for CAS 121-45-9

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.

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Yes. Our technical team is available to assist with questions about product use, storage, purity requirements, applications, and more.

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Yes. We offer competitive pricing for bulk orders. Please submit a quotation request, and we’ll provide a customized offer.

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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.

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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.

Retrosynthesis analysis of 121-45-9

  • Route#1

    Cas:36677-82-4
    Cas:3743-07-5
    Cas:121-45-9
  • Route#2

    Cas:3743-07-5
    Cas:121-45-9
  • Route#3

    Cas:20621-25-4
    Cas:121-45-9

Operate under the ISO 9001 system