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1187523-95-0

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1187523-95-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1187523-95-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,5,2 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1187523-95:
(9*1)+(8*1)+(7*8)+(6*7)+(5*5)+(4*2)+(3*3)+(2*9)+(1*5)=180
180 % 10 = 0
So 1187523-95-0 is a valid CAS Registry Number.

1187523-95-0Relevant articles and documents

2'-Halobiphenyl-4-yl intermediates in the synthesis of angiotensin II antagonists

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Page/Page column 10, (2009/10/01)

A process for obtaining 2'-halo-4-methylbiphenyls is described, which comprises reacting 4-halotoluene with a 1,2-dihalobenzene in the presence of elemental metal such as magnesium, lithium or zinc, wherein 0 to 0.9 molar, particularly 0 to 0.2 molar excess of 4-halotoluene in regard to 1,2-dihalobenzene is used, and arised organometal intermediates are quenched by elemental halogen. In addition, the coupling of arised 2'-halo-4-methylbiphenyls with 2-(1-propyl)-4-methyl-6-(1'-methylbenzimidazole-2-il)benzimidazole to afford 3'-(2'-halo-biphenyl-4-ylmethyl)-1,7'-dimethyl-2'-propyl-1H,3'H-[2,5']bibenzoimidazolyl, which can be further converted to organometallic compound and said organometallic compound is further reacted with formic acid derivative, such as N,N-dimethylformamide, alkylformiate or carbon dioxide to obtain telmisartan, is also described. Further described is use of in line analytics for monitoring the aforementioned reactions.

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