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1155848-54-6

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1155848-54-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1155848-54-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,5,8,4 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1155848-54:
(9*1)+(8*1)+(7*5)+(6*5)+(5*8)+(4*4)+(3*8)+(2*5)+(1*4)=176
176 % 10 = 6
So 1155848-54-6 is a valid CAS Registry Number.

1155848-54-6Upstream product

1155848-54-6Downstream Products

1155848-54-6Relevant articles and documents

New efficient synthesis of 5-ethoxyoxazoles and oxazolo[3,2-c]quinazolines via aza-Wittig reaction

Huang, Nian-Yu,Nie, Yi-Bo,Ding, Ming-Wu

, p. 611 - 614 (2009)

5-Ethoxyoxazoles or 2-acylamino propanoates were synthesized by aza-Wittig reaction of iminophosphorane with acyl chloride in the presence of triethylamine. Reactions of 5-alkoxyoxazole with triphenyphosphine produced iminophosphoranes. A tandem aza-Wittig reaction of iminophosphorane with isocyanate or carbon disulfide generated oxazolo[3,2-c]quinazolines in satisfactory yields. Georg Thieme Verlag Stuttgart.

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