[Claim 1]
A cooling agent composition, comprising a methyl menthol derivative represented by the following general formula (1A) or the following general formula (1B):

[in the formulae, a double line composed of a solid line and a dotted line is a double bond or a single bond, and a symbol * is an asymmetric carbon atom,
W is a hydrogen atom, or forms a ring with X via a single bond or an oxygen atom,
X represents -CHO, -CO-Y or -O-Z,
Y is a group represented by the following formula (i) or formula (ii):
(i) NR1R2 or
(ii) OR3
(in the formula (i) and the formula (ii), R1 to R3 are each independently a hydrogen atom, a linear or branched alkyl group having a carbon number of 1 to 10 which may have a substituent, a linear or branched alkenyl group having a carbon number of 2 to 10 which may have a substituent, a cycloalkyl group having a carbon number of 3 to 10 which may have a substituent, an aryl group having a carbon number of 6 to 20 which may have a substituent, or a heterocyclic group having a carbon number of 2 to 15 which may have a substituent), and
Z is a group represented by the following formula (iii) or formula (vi):
(iii) R4 or
(vi) COR5
(in the formula (iii), R4 is a linear or branched alkyl group having a carbon number of 1 to 10 which may have a substituent, a linear or branched alkenyl group having a carbon number of 2 to 10 which may have a substituent, a cycloalkyl group having a carbon number of 3 to 10 which may have a substituent, an aryl group having a carbon number of 6 to 20 which may have a substituent, or a heterocyclic group having a carbon number of 2 to 15 which may have a substituent, and
in the formula (vi), R5 is a hydrogen atom, a linear or branched alkyl group having a carbon number of 1 to 10 which may have a substituent, a linear or branched alkenyl group having a carbon number of 2 to 10 which may have a substituent, a cycloalkyl group

having a carbon number of 3 to 10 which may have a substituent, an aryl group having a carbon number of 6 to 20 which may have a substituent, or a heterocyclic group having a carbon number of 2 to 15 which may have a substituent)]. [Claim 2]
The cooling agent composition according to Claim 1, wherein the methyl menthol derivative is a (2S)-form. [Claim 3]
The cooling agent composition according to Claim 1 or 2, further comprising at least one kind of cool feeling substance other than the methyl menthol derivative. [Claim 4]
The cooling agent composition according to Claim 3, wherein the cool feeling substance other than the methyl menthol derivative is at least one cool feeling substance selected from the group consisting of:
one or more kinds of compounds selected from menthol, menthone, camphor, pulegol, isopulegol, cineole, cubenol, menthyl acetate, pulegyl acetate, isopulegyl acetate, menthyl salicylate, pulegyl salicylate, isopulegyl salicylate, 3-(l-menthoxy)propan-1,2-diol, 2-methyl-3-(l-menthoxy)propan-1,2-diol, 2-(l-menthoxy)ethan-1-ol, 3-(l-menthoxy)propan-1-ol, 4-(l-menthoxy)butan-1-ol, menthyl 3-hydroxybutanoate, menthyl glyoxylate, p-menthane-3,8-diol, 1-(2-hydroxy-4-methylcyclohexyl)ethanone, menthyl lactate, menthone glycerin ketal, menthyl-2-pyrrolidone-5-carboxylate, monomenthyl succinate, alkali metal salts of monomenthyl succinate, alkaline earth metal salts of monomenthyl succinate, monomenthyl glutarate, alkali metal salts of monomenthyl glutarate, alkaline earth metal salts of monomenthyl glutarate, N-[[5-methyl-2-(1-methylethyl)cyclohexyl]carbonyl]glycine, p-menthane-3-carboxylic acid glycerol ester, menthol propylene glycol carbonate, menthol ethylene glycol carbonate, p-menthane-2,3-diol, 2-isopropyl-N,2,3-trimethylbutanamide, N-ethyl-p-menthane-3-carboxamide, ethyl 3-(p-menthane-3-carboxamide)acetate, N-(4-methoxyphenyl)-p-menthanecarboxamide, N-ethyl-2,2-diisopropylbutanamide, N-cyclopropyl-p-menthanecarboxamide, N-(4-cyanomethylphenyl)-p-menthanecarboxamide, N-(2-pyridin-2-yl)-3-p-menthanecarboxamide, N-(2-hydroxyethyl)-2-isopropyl-2,3-dimethylbutanamide, N-(1,1-dimethyl-2-hydroxyethyl)-2,2-diethylbutanamide, cyclopropanecarboxylic acid (2-isopropyl-5-methylcyclohexyl)amide, N-ethyl-2,2-diisopropylbutanamide, N-[4-(2-amino-2-oxoethyl)phenyl]-p-menthanecarboxamide, 2-[(2-p-menthoxy)ethoxy]ethanol, 2,6-diethyl-5-isopropyl-2-methyltetrahydropyran, and trans-4-tert-butylcyclohexanol;
one or more kinds of sugar alcohols selected from xylitol, erythritol, dextrose, and sorbitol; and
one or more kinds of natural products selected from Japanese mint oil, peppermint oil, spearmint oil, and eucalyptus oil.

[Claim 5]
A sensory stimulant composition, comprising the cooling agent composition described in any one of Claims 1 to 4. [Claim 6]
The sensory stimulant composition according to Claim 5, further comprising at least one kind of warm feeling substance. [Claim 7]
The sensory stimulant composition according to Claim 6, wherein the warm feeling substance is at least one warm feeling substance selected from the group consisting of:
one or more kinds of compounds selected from vanillyl methyl ether, vanillyl ethyl ether, vanillyl propyl ether, vanillyl isopropyl ether, vanillyl butyl ether, vanillyl amyl ether, vanillyl isoamyl ether, vanillyl hexyl ether, isovanillyl methyl ether, isovanillyl ethyl ether, isovanillyl propyl ether, isovanillyl isopropyl ether, isovanillyl butyl ether, isovanillyl amyl ether, isovanillyl isoamyl ether, isovanillyl hexyl ether, ethyl vanillyl methyl ether, ethyl vanillyl ethyl ether, ethyl vanillyl propyl ether, ethyl vanillyl isopropyl ether, ethyl vanillyl butyl ether, ethyl vanillyl amyl ether, ethyl vanillyl isoamyl ether, ethyl vanillyl hexyl ether, vanillin propylene glycol acetal, isovanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, vanillyl butyl ether acetic acid ester, isovanillyl butyl ether acetic acid ester, ethyl vanillyl butyl ether acetic acid ester, 4-(l-menthoxymethyl)-2-(3’-methoxy-4’-hydroxyphenyl)-1,3-dioxolane, 4-(l-menthoxymethyl)-2-(3’-hydroxy-4’-methoxyphenyl)-1,3-dioxolane, 4-(l-menthoxymethyl)-2-(3’-ethoxy-4’-hydroxyphenyl)-1,3-dioxolane, capsaicin, dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, biscapsanthin, trishomocapsanthin, nornorcapsanthin, norcapsanthin, capsaicinol, vanillyl caprylamide (octylic acid vanillylamide), vanillyl pelargonamide (nonylic acid vanillylamide), vanillyl caproamide (decylic acid vanillylamide), vanillyl undecamide (undecylic acid vanillylamide), N-trans-feruloyltyramine, N-5-(4-hydroxy-3-methoxyphenyl)-2E,4E-pentadienoylpiperidine, N-trans-feruloylpiperidine, N-5-(4-hydroxy-3-methoxyphenyl)-2E-pentenoylpiperidine, N-5-(4-hydroxyphenyl)-2E,4E-pentadienoylpiperidine, piperine, isopiperine, chavicine, isochavicine, piperamine, piperettine, piperolein B, retrofractamide A, pipercide, guineenside, piperiline, piperamide C5:1 (2E), piperamide C7:1 (6E), piperamide C7:2 (2E,6E), piperamide C9:1 (8E), piperamide C9:2 (2E,8E), piperamide C9:3 (2E,4E,8E), fagaramide, sanshool-I, sanshool-II, hydroxysanshool, sanshoamide, gingerol, shogaol, zingerone, methylgingerol, paradol, spilanthol, chavicine, polygodial (tadeonal), isopolygodial, dihydropolygodial, and tadeon; and

one or more kinds of natural products selected from capsicum oil, capsicum oleoresin, ginger oleoresin, jambu oleoresin (Spilanthes oleracea extract), sansho (Zanthoxylum piperitum) extract, sanshoamide, black pepper extract, white pepper extract, and polygonum extract. [Claim 8]
A flavor composition and/or a fragrance composition, comprising the sensory stimulant composition described in any one of Claims 5 to 7. [Claim 9]
A flavor composition and/or a fragrance composition, comprising the sensory stimulant composition described in any one of Claims 5 to 7 in an amount of 0.00001 to 90 mass%. [Claim 10]
A product, which is any product selected from the group consisting of beverages, foods, fragrances or cosmetics, toiletry products, air care products, daily necessities and household goods, compositions for oral use, hair care products, skin care products, body care products, detergents for clothes, soft finishing agents for clothes, quasi-drugs, and drugs, and comprises the sensory stimulant composition described in any one of Claims 5 to 7. [Claim 11]
A product, which is any product selected from the group consisting of beverages, foods, fragrances or cosmetics, toiletry products, air care products, daily necessities and household goods, compositions for oral use, hair care products, skin care products, body care products, detergents for clothes, soft finishing agents for clothes, quasi-drugs, and drugs, and comprises the sensory stimulant composition described in any one of Claims 5 to 7 in an amount of 0.00001 to 50 mass%. [Claim 12]
A product, which is any product selected from the group consisting of beverages, foods, fragrances or cosmetics, toiletry products, air care products, daily necessities and household goods, compositions for oral use, hair care products, skin care products, body care products, detergents for clothes, soft finishing agents for clothes, quasi-drugs, and drugs, and comprises the flavor composition and/or the fragrance composition described in Claim 8 or 9. [Claim 13]
A product, which is any product selected from the group consisting of beverages, foods, fragrances or cosmetics, toiletry products, air care products, daily necessities and household goods, compositions for oral use, hair care products, skin care products, body care products, detergents for clothes, soft finishing agents for clothes, quasi-drugs, and

drugs, and comprises the flavor composition and/or the fragrance composition described in Claim 8 or 9 in an amount of 0.00001 to 50 mass%. [Claim 14]
A method for producing a product, which is any product selected from the group consisting of beverages, foods, fragrances or cosmetics, toiletry products, air care products, daily necessities and household goods, compositions for oral use, hair care products, skin care products, body care products, detergents for clothes, soft finishing agents for clothes, quasi-drugs, and drugs, wherein the method comprises blending the sensory stimulant composition described in any one of Claims 5 to 7. [Claim 15]
A method for producing a product, which is any product selected from the group consisting of beverages, foods, fragrances or cosmetics, toiletry products, air care products, daily necessities and household goods, compositions for oral use, hair care products, skin care products, body care products, detergents for clothes, soft finishing agents for clothes, quasi-drugs, and drugs, wherein the method comprises blending the flavor composition and/or the fragrance composition described in Claim 8 or 9. [Claim 16]
A methyl menthol derivative represented by the following general formula (1A):

[in the formula, a double line composed of a solid line and a dotted line is a double bond or a single bond, and a symbol * is an asymmetric carbon atom,
W is a hydrogen atom, or forms a ring with X’ via a single bond or an oxygen atom,
X’ represents -CHO, -CO-Y’ or -O-Z,
Y’ is a group represented by the following formula (i) or formula (ii’):
(i) NR1R2 or
(ii’) OR3’
(in the formula (i), R1 and R2 are each independently a hydrogen atom, a linear or branched alkyl group having a carbon number of 1 to 10 which may have a substituent, a linear or branched alkenyl group having a carbon number of 2 to 10 which may have a substituent, a cycloalkyl group having a carbon number of 3 to 10 which may have a substituent, an aryl group having a carbon number of 6 to 20 which may have a substituent,

or a heterocyclic group having a carbon number of 2 to 15 which may have a substituent, and
in the formula (ii’), R3’ is a linear or branched alkyl group having a carbon number of 1 to 10 which may have a substituent, a linear or branched alkenyl group having a carbon number of 2 to 10 which may have a substituent, a cycloalkyl group having a carbon number of 3 to 10 which may have a substituent, an aryl group having a carbon number of 6 to 20 which may have a substituent, or a heterocyclic group having a carbon number of 2 to 15 which may have a substituent), and
Z is a group represented by the following formula (iii) or formula (vi):
(iii) R4 or
(vi) COR5
(in the formula (iii), R4 is a linear or branched alkyl group having a carbon number of 1 to 10 which may have a substituent, a linear or branched alkenyl group having a carbon number of 2 to 10 which may have a substituent, a cycloalkyl group having a carbon number of 3 to 10 which may have a substituent, an aryl group having a carbon number of 6 to 20 which may have a substituent, or a heterocyclic group having a carbon number of 2 to 15 which may have a substituent, and
in the formula (vi), R5 is a hydrogen atom, a linear or branched alkyl group having a carbon number of 1 to 10 which may have a substituent, a linear or branched alkenyl group having a carbon number of 2 to 10 which may have a substituent, a cycloalkyl group having a carbon number of 3 to 10 which may have a substituent, an aryl group having a carbon number of 6 to 20 which may have a substituent, or a heterocyclic group having a carbon number of 2 to 15 which may have a substituent)]. [Claim 17]
The methyl menthol derivative according to Claim 16, wherein the methyl menthol derivative is a (2S)-form.