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130940-73-7

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130940-73-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130940-73-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,9,4 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 130940-73:
(8*1)+(7*3)+(6*0)+(5*9)+(4*4)+(3*0)+(2*7)+(1*3)=107
107 % 10 = 7
So 130940-73-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H26INO5S/c21-17-12-15(9-10-18(17)23)28(26,27)22-20-14-8-7-13(11-14)16(20)5-3-1-2-4-6-19(24)25/h1,3,9-10,12-14,16,20,22-23H,2,4-8,11H2,(H,24,25)/b3-1-/t13-,14+,16-,20-/m1/s1/i21-2

130940-73-7Upstream product

130940-73-7Downstream Products

130940-73-7Relevant articles and documents

Improved synthesis of (5Z)-7-3-endo-{(benzenesulfonamido)-bicyclo[2.2.1]heptyl}hept-5-enoic acid (S-145) derivatives and their iodine-125-labeled radioligands for the study of thromboxane A2 receptor

Kan, Wai Ming,Tai, Hsin-Hsiung

, p. 57 - 64 (2007/10/02)

An improved synthetic scheme for (5Z)-7-{3-endo-[(benzenesulfonamido)-bicyclo[2.2.1]heptyl}-hept-5-enoic acid (S145) and its analogs has been designed. The procedure involves direct sulfonylation of 2-allyl-3-aminobicyclo[2.2.1]heptane intermediate followed by ozonolysis and addition of a C5 carboxyl unit. The yield of the final product was significantly improved. (5Z)-7-{3-endo-[(4-iodobenzensulfonamido)-bicyclo [2.2.1]heptyl}hept-5-enoic acid (HS-145) and (5Z)-7-{3-endo-[(4-hydroxy-benzensulfonamido)-bicyclo [2.2.1]heptyl}hept-5-enoic acid (HS-145) were synthesized directly without any protection and deprotection steps. [125I](5Z)-7-{3-endo-[(4-iodobenzensulfonamido)- bicyclo[2.2.1]heptyl}hept-5-enoic acid ([125I]HS-145) was prepared from IS-145 through an organotin intermediate and [125I]sodium iodide with high specific radioactivity and good recovery of radioactivity. [125I](5Z)-7-{3-endo-[(4-hydroxy 3-iodo-benzensulfonamido)-bicyclo[2.2.1]-heptyl}hept-5-enoic acid ([125I]HS-145) was prepared by direct iodination with sodium iodide using a modified chloramine-T method. Both [125]HS-145 and [125I]HS-145 were found to be valuable radioligands for studying thromboxane A2 (TXA2) receptor.

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