Welcome to LookChem.com Sign In|Join Free

CAS

  • or

250638-02-9

Post Buying Request

250638-02-9 Suppliers

Recommended suppliersmore

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

250638-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 250638-02-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,6,3 and 8 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 250638-02:
(8*2)+(7*5)+(6*0)+(5*6)+(4*3)+(3*8)+(2*0)+(1*2)=119
119 % 10 = 9
So 250638-02-9 is a valid CAS Registry Number.

250638-02-9Relevant articles and documents

Phenolic compounds from Tournefortia sarmentosa

Lin, Yun-Lian,Tsai, Yu-Ling,Kuo, Yueh-Hsiung,Liu, Yi-Hung,Shiao, Ming-Shi

, p. 1500 - 1503 (1999)

Three new isoprenylbenzenes, tournefolins A (1), B (2), and C (3), and two new 2-ethoxy-4,5-dihydroxybenzoyl compounds, 4 and 5, together with the known compounds, salicylic acid and allantoin, were isolated from the stems of Tournefortia sarmentosa. The structures of new compounds were elucidated as 2-(4β-methyltetrahydrofuran- 1/2 a-yl)-5-(4β-methyltetrahydrofuran-2β-yl)- 1,4-dihydroxybenzene (1), methyl 5-(5-hydroxy-2-methoxyphenyl)-3-furoate (2), methyl 5-(2,5-dihydroxyphenyl)-3-furoate (3), 2-ethoxy-4,5- dihydroxybenzaldehyde (4), and 2-ethoxy-4,5-dihydroxybenzoic acid (5), on the basis of spectral and chemical methods. The relative configuration of 1 was determined by single-crystal X-ray crystallography.

The chemistry of fungi; the synthesis of 6-hydroxy

MacKENZIE,ROBERTSON

, p. 497 - 499 (2007/10/08)

-

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 250638-02-9