Welcome to LookChem.com Sign In|Join Free

CAS

  • or

2683-06-9

Post Buying Request

2683-06-9 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

2683-06-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2683-06-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,8 and 3 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 2683-06:
(6*2)+(5*6)+(4*8)+(3*3)+(2*0)+(1*6)=89
89 % 10 = 9
So 2683-06-9 is a valid CAS Registry Number.

2683-06-9Upstream product

2683-06-9Relevant articles and documents

Diazoaldehyde Chemistry, Part 2: Transdiazotization of β,γ- and β,δ-Dioxoaldehydes

Sezer, Oezkan,Hanci, Nalan,Anac, Olcay

, p. 223 - 226 (2007/10/03)

Base induced ring opening reactions of 2-(substituted)-4H-pyran-4-ones (R=H, Ph) gave the corresponding 5-(substituted)-3,5-dioxopentanals, which were in turn transdiazotized with 2-azido-1-ethylpyridin-1-ium BF4.The reactions gave 5-(substituted)-2,4-bis(diazo)-3,5-dioxopentanals and 4-(substituted)-1,3-bis(diazo)-2,4-butandiones, the latter being the deformylating diazo transfer products.A two-fold deformylation product (1,3-bisdiazo-2-propanone) was observed in the reaction of 3-oxopentandial, which was also synthesized from tosyl azide and 1,5-bis(N-methyl-N-phenylamino)-trans,trans-1,4-pentadiene-3-one in low yield. 4-(substituted)-3-diazo-2,4-butandienones also formed as side products.The reactions of 4,4-dimethoxy-3-oxobutanal and ethyl 2,4-dioxobutanoate with the same azidinium salt gave 1-diazo-3,3-dimethoxy-2-propanone and ethyl 3-diazo-2-oxopropanoate respectively.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 2683-06-9