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178745-31-8

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178745-31-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178745-31-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,7,4 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 178745-31:
(8*1)+(7*7)+(6*8)+(5*7)+(4*4)+(3*5)+(2*3)+(1*1)=178
178 % 10 = 8
So 178745-31-8 is a valid CAS Registry Number.

178745-31-8Downstream Products

178745-31-8Relevant articles and documents

Multi-substituted tetrahydrofurans

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, (2008/06/13)

Novel odorant compositions which are characterized by a content of one or more compounds selected from the group consisting of tetrahydrofurans of structures 1 or 2, or tetrahydropyrans of structure 3. STR1 wherein R can be an acyclic, where acyclic refers to a chain of at least four carbon atoms substituted with at least three methyl groups in the chain, carbocyclic, where carbocyclic refers to a ring of 5-8 carbon atoms, and with at least two methyl groups on the ring, or bicyclic where bicyclic refers to two carbon rings, each ring having between 5-8 carbon atoms fused together, substituted with at least two methyl groups, and where R1 =CH3, or higher alkyl group, R2 =H, CH3, or higher alkyl group, R3 =H, or CH3, R4 and R5 =H, CH3, or higher alkyl group.

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